In which type of parthenogenesis are only males produced?

Transverse Binary fission is seen is ______

Paedogamy is the sexual union of _____

A few statements describing certain features of reproduction are given below. Select the options that are true for both sexual and asexual reproduction from the options given:
(i) Gametic fusion takes place
(ii) Transfer of genetic material takes place
(iii) Reduction division takes place
(iv) Progeny have some resemblance, with parents

The ______ is the smallest human cell.

Animals giving birth to young ones:

In, dinoflagellates the types of asexual reproduction seen is _____

Regeneration is not seen in ______

The male sex hormone testosterone is secreted from

Testosterone is secreted by ____

The mode of reproduction in bacteria is by

All the following animals are continuous breeders, except.

The glandular accessory organ which produces the largest proportion of semen is

Identify the correct statements from the following

Which of the following phenotypes in the progeny are possible from the parental combination AxB?

Assertion and reasoning questions:
In each of the following questions there are two statements. One is assertion (A) and other is reasoning (R). Mark the correct answer as
Assertion: In bee society, all the members are diploid except drones.
Reason: Drones are produced by parthenogenesis

Ovovivipary is seen in ______

In _____ types of parthenogenesis egg can develop into individuals of any sex.

Given below, are a few statements related to external fertilization. Choose the correct statements:
i. The male and female gametes are formed and released simultaneously
ii. Only a few gametes are released into the medium
iii. Water is the medium in a majority of organism exhibiting external fertilization
iv. Offspring formed as a result of external fertilization have better chance of survival than those formed inside the organism

The male homologue of the female clitoris is

Evolutionary history of an organism is called

Allergy involves

Recombinant Factor VIII is produced in the ______ cells of the Chinese Hamster

Which of the following is correct for r-selected species

The Ozone Day is observed every year on September 16 as on this day in 1987 the ___________was signed for launching efforts to arrest the depletion of the fragile ozone layer in the stratosphere that prevents the harmful ultra-violet rays of the sun from reaching the earth. Fill the correct word in blank.

Assertion and reasoning questions:
In each of the following questions there are two statements. One is assertion (A) and other is reasoning (R). Mark the correct answer as
Assertion: Offsprings produced by asexual reproduction are genetically identical to the parent.
Reason: Asexual reproduction involves only mitosis and no meiosis

Assertion (A): Asexual reproduction is called blastogenic reproduction.
Reason (R): It is accomplished by mitotic and meiotic divisions.

The most important hormone in intiating and maintaining lactation after birth is

Select the incorrect action of hormonal contraceptive pills from the following

Which of the following approach does not give the defined action of contraceptive?

Assertion and reasoning questions:
In each of the following questions there are two statements. One is assertion (A) and other is reasoning (R). Mark the correct answer as
Assertion: Offsprings produced by asexual reproduction are genetically identical to the parent.
Reason: Asexual reproduction involves only mitosis and no meiosis

Identify the correct option to label the diagram Identify the structure
1- Immature proglottids
2 - Gravid proglottids
3 - Scolex
4 - Mature proglottids
5 - Neck

______ is not linked to polymenorrhoea

Klinefelters’ syndrome is characterized by a karyotype of

A mRNA molecule is produced by

In which mode of reproduction variations are seen

External fertilization is seen is ______

Paedogenetic parthenogenesis is seen in ______

Colostrum is rich in

This technique is used to diagnose the chromosomal abnormities.

Transgenic animals are those which have

The point mutation sequence for transition, transition, transversion and transversion in DNA are

Which of the following one is used as a Biosensors?

Virus free plants are developed from

A free living nitrogen fixing cyanobacterium which can also form symbiotic association with the water fern Azolla

Darwin’s finches are an excellent example of

Which among the following awards instituted by the Government of India for individuals or communities from rural areas that have shown extraordinary courage and dedication in protecting Wildlife?

Identify the incorrect pair

Pure tall plants are crossed with pure dwarf plants. In the F1 generation, all plants were tall. These tall plants of F1 generation were selfed and the ratio of tall to dwarf plants obtained was 3:1. This is called

Which of the following one is used as a Biosensors?

Assertion and reasoning questions:
In each of the following questions there are two statements. One is assertion (A) and other is reasoning (R). Mark the correct answer as
Assertion: Offsprings produced by asexual reproduction are genetically identical to the parent.
Reason: Asexual reproduction involves only mitosis and no meiosis

Find the wrongly matched pair

Match column I with column II and select the correct option from the codes given below.

Pataus’ syndrome is also referred to as

Meselson and Stahl’s experiment proved

Colostrum is rich in

A contraceptive pill prevents ovulation by

Which of the following phenotypes is not possible in the progeny of the parental genotypic combination I^AI^O X I^AI^B?

ZW-ZZ system of sex determination occurs in

Which of the following statements is not true about DNA replication in eukaryotes?

Assertion and reasoning questions:
In each of the following questions there are two statements. One is assertion (A) and other is reasoning (R). Mark the correct answer as
Assertion: In bee society, all the members are diploid except drones.
Reason: Drones are produced by parthenogenesis

The foetal membrane that forms the basis of the umbilical cord is

Identify the correct statements from the following

Which of the following is not correct?

Pataus’ syndrome is also referred to as

Mammalian egg is

A – Ovulation is the release of ovum from the Graafian follicle.
R – It occurs during the follicular phase of the menstrual cycle.

Assertion : Agrobacterium tumifaciens is popular in genetic engineering because this bacteriumis associated with the root nodules of all cereals and pulse crops
Reason: A gene incorporated in the bacterial chromosomal genome gets atomatically transferred to the cross with which bacterium is associated.

The prevention of large scale loss of biological interity

Pedogenesis refers to

During favourable conditions ______ shows multiple fission.

Testosterone is secreted by ____

Assertion (A): IUD's are inserted in the ovary.
Reason (R): IUD's Increases phagocytosis of the sperm.

The ZW - ZZ type of sex determination is seen ________.

In gypsy moth we find _________ type of sex determination.

Giant Amoeba refers to ______

Testosterone is secreted by ____

This technique is used to diagnose the chromosomal abnormities.

The gene responsible for ________ is inherited as an autosomal recessive lethal gene in man

Pick out the odd man out.

In the geom line gene therapy, the genes are introduced into the______

Statement 1:ADA deficiency was the first disease treated by gene therapy.
Statement 2: ADA is an autosomal recessive metabolic disorder

Cryopreservation of gametes of threatened species in viable and fertile condition can be referred to as

DB is a standard abbreviation  used for the quantitative expression of

Identify the incorrect statement.
(i) EcoSan toilets is a sustainable way for handling human excreta by using dry composting toilets
(ii) It reduces waste water generation
(Ui) It is based on recovery and recycling of nutrients from excreta
(iv) EcoSan toilets are used in several parts of India and Srilanka.

The site of infection for yersinia pestis is___________

Infection of Ascariasis occur due to ___________________

All the following are recombinant vaccines. Except

Study the four statements (1 to 4) given below and select the two correct ones out of them.
1) A lion eating a deer and a sparrow feeding on grain are ecologically similar in being consumers.
2) Predator starfish Pisaster helps in maintaining species diversity of some invertebrates.
3) Predators ultimately lead to the extinction of prey species.
4) Production of chemicals such as nicotine, strychnine by the plants is disordered.
The two correct statements are

Select the proper sequence indicating the increasing order of biodiversity.

Technique used for cultivation of sponges is based on ______

In _____ types of parthenogenesis egg can develop into individuals of any sex.

______ is a berry shaped duster of cells.

The ruptured Graafian follicle forms ______

Why is colostrum recommended to new born baby?

Conjugation is seen in _____

A few statements with regard to sexual reproduction are given below:
i. Sexual reproduction does not always require two individuals
ii. Sexual reproduction generally involves gametic fusion
iii. Meiosis never occurs during sexual reproduction
iv. External fertilization is a rule during sexual reproduction
Choose the correct statements from the options below:

Each testis is covered by a fibrous layer _____

Which one of the following is not the function of placenta?

The incubation period for _____ varies between 1-8 months.

Isogamy is observed in ______

______ cells nourish the sperms.

In gypsy moth we find _________ type of sex determination.

The RNA polymerase of prokaryotes binds with ____________ factor to initiate polymerization.

Continuous consumption of alcohol affects ___________

Which among the following animals exhibit ovoviviparity?

Match and select the correct option

Wodd Breast feeding week is observed during.

In this Assisted Reproductive Technology (ART), the sperms and egg are allowed to united outside the body and then transformed into the woman's uterus.

ABO blood group is a classical example for __________

Identify the correct option to label the diagram
1 - Archaeocytes
2 - Inner membrane
3 - Micropyle
4 - Outer membrane
5 - Monaxonspicules

Which of the following is not required for any of the techniques of DNA finger printing available at present?

The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge is called

Which of the following is wrongly matched in the given table?

For transformation, micro-particles coated with DNA to be bombarded with gene gun are made up of

Gemmules are ______

Attachment of blastocyst to the uterine wall is called ______

This is not Major task of RCH.

Depending on position of centromere and relative length of two arms human chromosomes can be classified into ________ type.

___________ used radioactive labelled molecules to prove that DNA is the genetic material.

First cell of male gametophyte in angiosperm is

Which of the following plant was introduced as a contaminant into India along with wheat?

Identify the correct statement.

The genotype of a plant showing the dominant phenotype can be determined

Assertion (A): Test cross is done between F2 hybrid with F. recessive
Reason (R): It helps to identify the homozygosity of hybrids

Arrange the layers of anther wall from locus to periphery

A typical anther is ________________

Observe the diagram and select the correct option mentioning the parts A, B, C and D

The genotype of a plant showing the dominant phenotype can be determined

Select the period for Mendel’s hybridization experiments

Technique used for cultivation of sponges is based on ______

Regeneration was first studied by _______

The male homologue of the female clitoris is

_____ are endocrine cells.

Sperms are released into the cavity of the seminiferous tubule by a process called _____

During favourable conditions ______ shows multiple fission.

Regeneration was first studied by _______

Mammalian egg is

_____ may be due to cancer of the ovary.

The _____ contractions lead to false labour pains.

The male homologue of the female clitoris is

Identify the correct statements from the following

Oral contraceptive pills contain synthetic ____ and hormones

Assertion (A): IUD's are inserted in the ovary.
Reason (R): IUD's Increases phagocytosis of the sperm.

Mangolism is a genetic disorder which is caused by the presence of an extra chromosome number

This is a method of sexual reproduction in which individuals of the same species temporarily write and exchange certain. amount of nuclear material and then get separated.

Find the wrongly matched pair

The _____ prevents poly spermy.

Observe the diagram and select the correct option denoting the proper sequence of parts.

Fatigue, jaundice, fever, rash, stomach pain, liver Cirrhosis and liver failure - are the symptoms of

______ is a berry shaped duster of cells.

Statement (1): Menstrual cycle occurs once in every 29 days.
Statement (2): The average age of menopause is 45-50 years.

Identify the correct statement.

Which of the following symbol is used in pedigree analysis to represent unspecified sex?

How many structural genes are located in lac operon of E.Coli?

According to WHO, India is the ____________ largest HIV affected country.

Kin selection is seen in _______

The codon _________ codes for phenylalanine

AUG code is for ________

The Neanderthal man had the brain capacity of

The male homologue of the female clitoris is

The spermatids are transformed into mature sperms by a process called ______

The foetal ejection reflex is also called ____ reflex.

Which of the following contributes to the seminal plasma?
(i) Cowper's gland
(ii) Seminal vesicles
(iii) Prostate gland
(iv) Bulbourethral gland

Match column I with column II and select the correct option from the codes given below.

All the following animals are continuous breeders, except.

A few statements with regard to sexual reproduction are given below:
i. Sexual reproduction does not always require two individuals
ii. Sexual reproduction generally involves gametic fusion
iii. Meiosis never occurs during sexual reproduction
iv. External fertilization is a rule during sexual reproduction
Choose the correct statements from the options below:

The Androgen Binding Protein (ABP) is produced by

The transfer of sperms by the male into the female genital tract is called _____

The hormone _____ produced by anterior pituitary plays a major role in lactation.

______ is a process by which the proglottids are cut off from the tapeworm.

Find the wrongly matched pair

Expulsion of baby from the mother's womb is called _____

Which of the following statement is not correct?
(i) Interstitial cells are seen surrounding the seminiferous tubule.
(ii) Nurse cells secrete inhibin.
(iii)Males have single prostate gland which encircles the urethra.
(iv) Insemination, Fertilization, Implantation, Placentation, and Parturition.

In embryo development of human beings, how long does it takes for a zygote to convert into morula?

In honey bees, the mode of reproduction is

The site of embryo implantation is the

The process which the sperm undergoes before penetrating the ovum is

The ______ is the smallest human cell.

The unequal divisions during oogenesis results in small cells called ______

Budding is seen in ______

Identify the correct option to label the diagram
1 - Bud forming
2 - Osculum
3 - Bud growing
4 - Daughter individual
5 - Individual parent

The process which the sperm undergoes before penetrating the ovum is

The term after birth refers to ______

Read the given statements and select the correct option
and vaults are made of rubber and are inserted into the female reproductive tract to cover the cervix before coitus.
Statement 2: They are chemical barriers of conception and are reusable.

The milk secreted by the mammary glands soon after child birth is called

A contraceptive pill prevents ovulation by

Which of the following is true about Rh factor in the offspring of a parental combination DdXDd (both Rh positive)?

Which of the following statements about DNA replication is not correct?

According to Darwin, the organic evolution is due to

The sexual union of young individuals produced immediately after the division of the parent Cellis called _____

Which of the following types of asexual reproduction is noticed in Amoeba?

The process which the sperm undergoes before penetrating the ovum is

______ is a hormone produced by sertoli cells.

The hormone ____ brings about powerful contraction of uterine muscles during child birth.

All the following animals are continuous breeders, except.

A few statements with regard to sexual reproduction are given below:
i. Sexual reproduction does not always require two individuals
ii. Sexual reproduction generally involves gametic fusion
iii. Meiosis never occurs during sexual reproduction
iv. External fertilization is a rule during sexual reproduction
Choose the correct statements from the options below:

Mammalian egg is

A contraceptive pill prevents ovulation by

Meselson and Stahl’s experiment proved

In which type of parthenogenesis are only males produced?

The mode of reproduction in bacteria is by

Assertion and reasoning questions:
In each of the following questions there are two statements. One is assertion (A) and other is reasoning (R). Mark the correct answer as
Assertion: Viviparous animals give better protection to their off springs.
Reason: They lay their eggs in the safe places of the environment

Multiple fission is seen in _______

Plasmotomy is observed in ________

Animals giving birth to young ones:

Assertion and reasoning questions:
In each of the following questions there are two statements. One is assertion (A) and other is reasoning (R). Mark the correct answer as
Assertion: Offsprings produced by asexual reproduction are genetically identical to the parent.
Reason: Asexual reproduction involves only mitosis and no meiosis

In, dinoflagellates the types of asexual reproduction seen is _____

During favourable conditions ______ shows multiple fission.

Transverse binary fission is noticed in _________________

The male sex hormone testosterone is secreted from

The Androgen Binding Protein (ABP) is produced by

A – Ovulation is the release of ovum from the Graafian follicle.
R – It occurs during the follicular phase of the menstrual cycle.

Spermatid \(\overset { A }{ \rightarrow }\) Spermatozoa what does 'A' stands for?

______ is a berry shaped duster of cells.

The mature sperms are stored in the

The glandular accessory organ which produces the largest proportion of semen is

Colostrum is rich in

Which one of the following menstrual irregularities is correctly matched?

A – Head of the sperm consists of acrosome and mitochondria.
R – Acrosome contains spiral rows of mitochondria.

Which of the following is correct regarding HIV, hepatitis B, gonorrhoea and trichomoniasis?

Identify the correct statements from the following

Match column I with column II and select the correct option from the codes given below.

Select the proper harmonal Composition of oral Contraceptive pills

The family planning programme was initiated by India in _____

Which of the following is correct regarding HIV, hepatitis B, gonorrhoea and trichomoniasis?

Identify the correct statements from the following

Match column I with column II and select the correct option from the codes given below.

In ZIFT technique the zygote is transferred at the stage of ________

In the year ______    india is expected to become the largest country in population size ______

Haemophilia is more common in males because it is a

Three children of a family have blood groups A, AB and B. What could be the genotypes of their parents?

If the childs blood group is ‘O’ and fathers blood group is ‘A’ and mother’s blood group is ‘B’ the genotype of the parents will be

A marriage between a colourblind man and a normal woman produces

Pataus’ syndrome is also referred to as

ABO blood group in man is controlled by

Which of the following phenotypes is not possible in the progeny of the parental genotypic combination I^AI^O X I^AI^B?

What can be the blood group of offspring when both parents have AB blood group?

The _______deals with the control of several inherited human diseases especially inborn errors of metabolism

ZW-ZZ system of sex determination occurs in

Hershey and Chase experiment with bacteriophage showed that

Which of the following is the correct sequence of event with reference to the central dogma?

Which of the following statements is not true about DNA replication in eukaryotes?

When lactose is present in the culture medium:

The term gene was coined by ________

Hershey and Chase experiment with bacteriophage showed that

Which of the following is the correct sequence of event with reference to the central dogma?

Meselson and Stahl’s experiment proved

One gene one enzyme hypothesis was proposed by Beadle and Tatum based on ________

The term nucleic acid was coined by ________.

The first life on earth originated

Which of the following was the contribution of Hugo de Vries?

The golden age of reptiles was

Modern man belongs to which period?

The solar system is estimated to be _______________years old.

Who published the book “Origin of species by Natural Selection” in 1859?

The age of fossils can be determined by

The Neanderthal man had the brain capacity of

Carbon dioxide in the primitive earth is said to have been formed from ___________

_____________ was not a part of theory of chemical evolution.

A 30 year old woman has bleedy diarrhoea for the past 14 hours, which one of the following organisms is likely to cause this illness?

The sporozoites of Plasmodium vivax are formed from ________

Spread of cancerous cells to distant sites is termed as

B cells that produce and release large amounts of antibody are called

_________is a non infective disease.

Exo-erythrocytic schizogony of Plasmodium takes place in _______

The sporozoite of the malarial parasite is present in ______

AIDS virus has

Rigidity of the Jaw muscle is a symptom of__________

_______is a carrier for transmitting entamoeba

Which of the following microorganism is used for production of citric acid in industries?

Which of the following is not involved in nitrogen fixation?

The purpose of biological treatment of waste water is to _______

The enzyme________is got from Aspergillus.

Lactobacillus helps to produce________

Which of the following pair is correctly

CO₂ is not released during

WorId Biofuel day is observed on_______

Aspergillus niger helps to produce________

__________is free living bacteria which acts as a biofertilizer.

The first clinical gene therapy was done for the treatment of

ELISA is mainly used for

Recombinant Factor VIII is produced in the ______ cells of the Chinese Hamster

Insulin was first isolated by_______

Interferons are produced using________

Dolly, the sheep was obtained by a technique known as

Transgenic animals are those which have

Vaccines that use components of a pathogenic organism rather than the whole organism are called

Alpha lactalbumin is a protein with___________minoacids.

Interferons were discovered by________

All populations in a given physical area are defined as

Match the following and choose the correct combination from the options given below.

The relationship between sucker fish and shark is__________

Some organisms are able to maintain homeostasis by physical means _______

The word 'niche' was first used by __________

Organisms which can survive a wide range of temperatuer are called

The figure given below is a diagrammatic representation of response of organisms to abiotic factors. What do A, B and C represent respectively.

What type of human population is represented by the following age pyramid?

Which of the following is a behavioural adaptation?

Birds sitting on cows to eat insects is an example of ____________

Which of the following region has maximum biodiversity

Which one of the following is not coming under insitu conservation

Assertion: The Environmental conditions of the tropics are favourable for speciation and diversity of organisms.
Reason: The climate seasons, temperature, humidity and photoperiod are more or less stable and congenial.

There are ________ mega biodiversity countries in the world

_____________ is not a threat to biodiversity.

Conservation of biodiversity within their natural habitat is

Which one of the following are at high risk extinction due to habitat destruction

___________ is a biographical gateway for much of India's flora and fauna.

________ is not a hotspot in India.

At present there are ___________ tiger reserves in the country.

Right to Clean Water is a fundamental right, under the Indian Constitution

The use of microorganism metabolism to remove pollutants such as oil spills in the water bodies is known as

The Hydrochlorofluorocarbons (HCFCs) are the compounds which have the following molecules:

The tolerable level of sound is _____________

The 2018 UN climate change conference was held in ___________

With which of the following, the Agenda 21’ of Rio Summit, 1992 is related to?

The Ozone Day is observed every year on September 16 as on this day in 1987 the ___________was signed for launching efforts to arrest the depletion of the fragile ozone layer in the stratosphere that prevents the harmful ultra-violet rays of the sun from reaching the earth. Fill the correct word in blank.

Oil spills can lead to ________________

PCB is a major component of ______________

DB is a standard abbreviation  used for the quantitative expression of

Colostrum provides

All are peripheral lymphoid organs except

B Cells are activated by

B cells that produce and release large amounts of antibody are called

Passive immunity does not exhibit this characteristic.

Paratope is an

In agglutination and precipitation reactions, the antigen is a ______ and ______ respectively

Raja is injured and got swelling. The swelling is due to the infection of tissue is an example of

______ is not a secondary lymphoid organ.

Enhanced attachment is also known as ________

The A and B genes are 10 cM apart on a chromosome. If an AB/ab heterozygote is testcrossed to ab/ab, how many of each progeny class would you expect out of 100 total progeny?

Which of the following sentences are correct?
1. The offspring exhibit only parental combinations due to incomplete linkage
2. The linked genes exhibit some crossing over in complete linkage
3. The separation of two linked genes are possible in incomplete linkage
4. Crossing over is absent in complete linkage

Due to incomplete linkage in maize, the ratio of parental and recombinants are

Changing the codon AGC to AGA represents

Which is not a feature of the chromosomal theory of inheritance?

Choose the correct statement from the following

Identify the incorrect pair

Choose the correct statement(s) about tenuinucellate ovule

The scar left by funiculus in the seed is

The unit of reproductive structure used in vegetative propagation is called as __________________

An eminent Indian embryologist is

Arrange the layers of anther wall from locus to periphery

Which of the following represent megagametophyte

Coelorhiza is found in

Which of the following aquatic plant is popularly known as the "Terror of Bengal"?

In order to find out the different types of gametes produced by a pea plant having the genotype AaBb, it should be crossed to a plant with the genotype

Test cross involves

Which Mendelian idea is depicted by a cross in which the F1 generation resembles both the parents

In his classic experiments on Pea plants, Mendel did not use

In a test cross involving F1 dihybrid flies, more parental type offspring were produced than the recombination type offspring. This indicates

In order to find out the different types of gametes produced by a pea plant having the genotype AaBb, it should be crossed to a plant with the genotype

Test cross involves

The genotype of a plant showing the dominant phenotype can be determined

In his classic experiments on Pea plants, Mendel did not use

In a test cross involving F1 dihybrid flies, more parental type offspring were produced than the recombination type offspring. This indicates

An allohexaploidy contains

Accurate mapping of genes can be done by three point test cross because increases

Genes G S L H are located on same chromosome. The recombination percentage is between L and G is 15%, S and L is 50%, H and S are 20%. The correct order of genes is

Assertion (A): Gamma rays are generally use to induce mutation in wheat varieties.
Reason (R): Because they carry lower energy to non-ionize electrons from atom

Name the scientist(s) who rediscovered the Mendelian work?
(i) Hugo de Vries
(ii) Carl Correns
(iii) Tschermak
(iv) T.H. Morgan

Restriction enzymes are

Which one of the following palindromic base sequence in DNA can be easily cut at about the middle by some particular restriction enzymes?

Which of the following one is used as a Biosensors?

`In which techniques Ethidium Bromide is used?

Which of the following person coined the term biotechnology?

Plasmids are

The process of recombinant DNA technology has the following steps
I. amplication of the gene
II. Insertion of recombinant DNA into the host cells
III. Cutting of DNA at specific location using restriction enzyme .
IV. Isolation of genetic material (DNA) Pick out the correct sequence of step for recombinant DNA technology.

Assertion : Agrobacterium tumifaciens is popular in genetic engineering because this bacteriumis associated with the root nodules of all cereals and pulse crops
Reason: A gene incorporated in the bacterial chromosomal genome gets atomatically transferred to the cross with which bacterium is associated.

Some of the characteristics of Bt cotton are

Zymology deals with __________

Totipotency refers to

Which of the following statement is correct

Cryopreservation means it is a process to preserve plant cells, tissues or organs

Which of the following condition favours callus induction?

A widely used fusogen in protoplast culture is ________

Micro propagation involves

Select the incorrect statement from given statement

Solidifying agent used in plant tissue culture is

The production of secondary metabolites require the use of _________.

Identify the correct sequence regarding steps involved in PTC

Arrange the correct sequence of ecological hierarchy starting from lower to higher level.

Which of the given plant produces cardiac glycosides?

Read the given statements and select the correct option.
Statement A : Cattle do not graze on weeds of Calotropis.
Statement B : Calotropis have thorns and spines, as defense against herbivores.

Read the following statements and fill up the blanks with correct option.
i) Total soil water content in soil is called _________________
ii) Soil water not available to plants is called _________________
iii) Soil water available to plants is called

The plant of this group are adapted to live partly in water and partly above substratum and free from water

Ecology is the study of an individual species is called
i) Community ecology
ii) Autecology
iii) Species ecology
iv) Synecology

Read the given statements and select the correct option.
i) Hydrophytes possess aerenchyma to support themselves in water.
ii) Seeds of Viscum are positively photoblastic as they germinate only in presence of light.
iii) Hygroscopic water is the only soil water available to roots of plant growing in soil as it is present inside the micropores.
iv) High temperature reduces use of water and solute absorption by roots

Read the given statements and select the correct option.
i) Loamy soil is best suited for plant growth as it contains a mixture of silt, sand and clay.
ii) The process of humification is slow in case of organic remains containing a large amount of lignin and cellulose.
iii) Capillary water is the only water available to plant roots as it is present inside the micropores.
iv) Leaves of shade plant have more total chlorophyll per reaction centre, low ratio of chl a and chl b are usually thinner leaves.

In soil water available for plants is

Ophrys an orchid resembling the female of an insect so as to able to get pollinated is due to phenomenon of

Which of the following is not a abiotic component of the ecosystem?

Pond is a type of

The following diagram represents

 

Which of the following is not a sedimentary cycle

Which group of organism occupies the third tropic level in an ecosystem?

Which of the following is / are not a natural ecosystem?

Solar energy used by green plants for photosynthesis is only

Ecosystem consists of

Significance of food web is / are

Identify the incorrect option among the following component sequence.

Which of the following would most likely help to slow down the greenhouse effect.

Find the wrongly matched pair.

One green house gas contributes 14% of total global warming and another contributes 6%. These are respectively identified as

Deforestation means

___________ is not a method of waste water treatment.

With respect to Eichhornia
Statement A: It drains off oxygen from water and is seen growing in standing water.
Statement B: It is an indigenous species of our country.

Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancer?

Deforestation does not lead to

People’s movement for the protection of environment in Sirsi of Karnataka is

Which is not a greenhouse gas?

Assertion: Genetic variation provides the raw material for selection
Reason: Genetic variations are differences in genotypes of the individuals.

The quickest method of plant breeding is

Plants having similar genotypes produced by plant breeding are called

Dwarfing gene of wheat is

A wheat variety, Atlas 66 which has been used as a donor for improving cultivated wheat, which is rich in

While studying the history of domestication of various cultivated plants _______ were recognized
earlier

Match Column I with Column II
Column I Column II
i) William S. Gaud I) Heterosis
ii) Shull II) Mutation breeding
iii) Cotton Mather III) Green revolution
iv) Muller and Stadler IV) Natural hybridization

Desired improved variety of economically useful crops are raised by

Which one of the following crop varieties correct matches with its resistance to a disease?

Which of the following scientist developed world's first cotton hybrid?

Consider the following statements and choose the right option.
i) Cereals are members of grass family.
ii) Most of the food grains come from monocotyledon.

New world species of cotton

Find out the correctly matched pair.

Observe the following statements and pick out the right option from the following:
Statement I: The drug sources of Siddha include plants, animal parts, ores and minerals.
Statement II: Minerals are used for preparing drugs with long shelf-life.

Which one of the following matches is correct?

Assertion: Vegetables are important part of healthy eating.
Reason: Vegetables are succulent structures of plants with pleasant aroma and flavours.

Assertion: Turmeric fights various kinds of cancer
Reason: Curcumin is an anti-oxidant present in turmeric

Observe the following statements and pick out the right option from the following:
Statement I – Perfumes are manufactured from essential oils.
Statement II – Essential oils are formed at different parts of the plants.

The active principle trans-tetra hydro canabial is present in

Match the common names of the given plant species with their respective binomial

Given an account on following terms.
(a) Hologamy
(b) Isogamy
(c) Anisogamy
(d) Merogamy
(e) Paedogamy

Describe the structure of human ovary.

Write notes on any two techniques in Assisted Reproductive Technology (ART).

Write a note on thalassemia.

Describe Hershey and Chase experiment. What is concluded by their experiment?

Differentiate between the following:
(a) Binary fission in amoeba and multiple fission in Plasmodium
(b) Budding in yeast and budding in Hydra
(c) Regeneration in lizard and Planaria

Identify the given image and label its parts marked as a, b, c and d

The procedure of GIFT involves the transfer of female gametes into the fallopain tube, can gametes be transferred to the uterus to achieve the same result? Explain.

a) Identify the figure given below
b) Redraw the structure as a replicating fork and label the parts
c) Write the source of energy for this replication and name the enzyme involved in this process.
d) Mention the differences in the synthesis of protein, based on the polarity of the two template strands.

Mention any three similarities found common in Neanderthal man and
Homo sapiens.

Explain parthenogenesis.

Write a note a extra embryonic membranes.

Give a detailed account on various natural methods of contraception.

Write a note on allosomal chromosomal abnormalities.

Describe Hershey and Chase experiment. What is concluded by their experiment?

Differentiate between the following:
(a) Binary fission in amoeba and multiple fission in Plasmodium
(b) Budding in yeast and budding in Hydra
(c) Regeneration in lizard and Planaria

The following is the illustration of the sequence of ovarian events (a-i) in a human female.

a) Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
b) Name the ovarian hormone and the pituitary hormone that have caused the above-mentioned events.
c) Explain the changes that occurs in the uterus simultaneously in anticipation.
d) Write the difference between C and H.

Open Book Assessment
‘Healthy reproduction, legally checked birth control measures and proper family planning programmes are essential for the survival of mankind’ Justify

What is extra chromosomal inheritance? Explain with an example

It is established that RNA is the first genetic material. Justify giving reasons.

Write notes on binary fission in animals.

Write a note a extra embryonic membranes.

What is infertility and write its causes.

Write a note on allosomal chromosomal abnormalities.

List the salient features of genetic code.

Differentiate between the following:
(a) Binary fission in amoeba and multiple fission in Plasmodium
(b) Budding in yeast and budding in Hydra
(c) Regeneration in lizard and Planaria

Explain the role of oxytocin and relaxin in parturition and lactation.

Amnicentesis, the foetal sex determination test, is banned in our country, Is it necessary? comment

Discuss the genic balance mechanism of sex determination with reference to Drosophila.

How is the two stage process of protein synthesis advantageous?

Explain multiple fission in plasmodium.

What is ovoviviparous condition?

Write a short note on phases of life cycle.

What is polymenorrhoea?

Write any three statements on Sertoli cells

Why are the offsprings of oviparous animal at a greater risk as compared to offsprings of viviparous organisms?

What is the composition of semen?

Differentiate foeticide and infanticide

Brief about female heterogamety

A low level of expression of lac operon occurs at all the windows for treatment of various genetic disorders. Justify the statement

What is repeated fission?

Write a short note on phases of life cycle.

What is LH surge?

What are primary reproductive organs? What role does they play in organisms?

May 28^th is celebrated as annual Menstrual Hygiene Day (MHD). State its importance

Give reasons for the following:
(a) Some organisms like honey bees are called parthenogenetic animals
(b) A male honey bee has 16 chromosomes where as its female has 32 chromosomes

Name the hormones produced from the placenta during pregnancy.

Differentiate foeticide and infanticide

Explain male heterogamety

Why tRNA is called an adapter molecule?

Explain encystment in amoeba.

Draw a gemmule and label any 2 parts.

Give the definition for (a) Arrhenotoky (b) Thelytoky (c) Amphitoky

'A' and 'B' are the male & female sex cells respectively which look alike and performs similar functions. 'A' and 'B' fuse to form a new individual 'D'. Which type of gametic fusion does this represent? Give an example

What is the role of FSH & LH in spermatogenesis?

The unicellular organisms which reproduce by binary fission are considered immortal. Justify

What is the composition of semen?

Give a schematic representation of spermatogenesis and oogenesis in humans.

What are the strategies to be implemented in India to attain total reproductive health?

Explain the genetic basis of ABO blood grouping man.

Define regeneration mention the types.

During which stagesidoes multiple fission occur is plasmodium.

Differentiate between transverse binary fission and longitudinal binary fission

Repeated fission is a type of multiple fission. Yes or No? Why?

What is Organogenesis?

Which type of reproduction is effective -Asexual or sexual and why?

Draw a labeled sketch of a spermatozoan.

Correct the following statements
a) Transfer of an ovum collected from donor into the fallopian tube is called ZIFT.
b) Transfering of an embryo with more than 8 blastomeres into uterus is called GIFT.
c) Multiload 375 is a hormone releasing IUD.

What is criss-cross inheritance?

Mention any two ways in which single nucleotide polymorphism (SNPs) identified in human genome can bring revolutionary change in biological and medical science