Fusion of morphologically and physiologically similar gametes is called ______

Select the incorrect action of hormonal contraceptive pills from the following

Watson and Crick proposed their double helical DNA model based on the X-ray diffraction analysis of _________

Darwin’s finches are an excellent example of

Select the correct statement from the following

Paratope is an

All are peripheral lymphoid organs except

B Cells are activated by

______ is not a feature of acquired immunity.

Lymph nodes are seen in the ______

Tectona grandis is coming under family

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.

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.

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

Identify the tamil name for flaked rice

The quickest method of plant breeding is

Jaya and Ratna are the semi dwarf varieties of

Match list I with list II

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

Assertion (A): SLF promotes vigorous growth and provide resistance against diseases.
Reason (R): SLF is made from kelp containing more than 70 minerals.

Find the wrongly matched pair.

Deforestation does not lead to

Identify the incorrect statement with regard to Global warming

Invasive species _______________

The ozone layer of ___________ is called bad ozone.

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

Solar energy used by green plants for photosynthesis is only

The following diagram represents

 

Which of the following are not regulating services of ecosystem services
i) Genetic resources
ii) Recreation and aesthetic values
iii) Invasion resistance
iv) Climatic regulation

Pick out the edaphic factor among the following.

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

In soil water available for plants is

Pedogenesis refers to

Identify the indicators of fire.

Earth day is observed on

Micro propagation involves

Solidifying agent used in plant tissue culture is

Protoplast are the cells devoid of ___________

Assertion (A) : Sterilization helps to overcome microbes.
Reason (R) : Explants are autoclaved.

The term used to define the ability of a cell to generate entire individual is

Plasmids are

An analysis of chromosomal DNA using the southern hybridisation technique does not use

Zymology deals with __________

Cohesive ends are _____________

Statement 1: DNA is a hydrophobic molecule.
Statement 2: T-DNA is a part ofE-coli plasmid.

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

How many map units separate two alleles A and B if the recombination frequency is 0.09?

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

Mechanism of crossing over involves the following stages. Select the correct sequence.

Transition type of gene mutation is caused when__________

In Mendel’s experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F2 generation of the cross RRYY x rryy?

Gene which suppresses other genes activity but does not lie on the same locus is called as

Which is not a correct statement?
(A) Variations are the raw materials for evolution
(B) Variations provide genetic material for natural selection
(C) It helps the individual to adapt to the changing environment
(D) Variations allow breeders to improve the crop field

How many characters studied by Mendel in pisum sativum

Identify the incorrect statement

Size of pollen grain in Myosotis

Arrange the layers of anther wall from locus to periphery

Assertion : Sporopollenin preserves pollen in fossil deposits
Reason : Sporopollenin is resistant to physical and biological decomposition

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

Which is not a part of mature seed?

As per 2017 statistics, the highest per capita emitter of Carbon dioxide in the world is

PCB is a major component of ______________

A lake which is rich in organic waste may result in

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.

Assertion (A): Evolution.of Greenhouse gases leads to Global warming
Reason (R): The energy released by the greenhouse gases move away from the atmospheric

Who introduced the term biodiversity?

The grizzled squirrel and lion tailed Macaque are endemic to _____________

________ is not a hotspot in India.

Mundanthurai wild life sanctuary is located in ___________ district.

Sacred groves are specially useful in

Which of the following is an r-species

"Birds and mammals attain greater body size in colder regions than warmer regions." - Choose the correct option.

A biologist studies the population of eats in a barn. He found that the average natality was 250, average mortality is 240, immigration is 20 and emigration to be 30. The  in population is

Pick out the correct statement regarding K-selected species

Death rate is also known as ___________

The genetic defect adenosine deaminase deficiency may be cured permanently by

The first synthetic vaccine produced was_________

This is not the advantage of new generation vaccine

PCR was developed by___________

Statement 1: Rosie was the first transgenic goat.
Statement 2: Meat is enriched with human protein

The gases produced in anaerobic sludge digesters are

________is not used as a biofertilizer

Which of the following are likely to be present in deep-sea water?

Tetracycline is a ________________
(i) bactericidal antibiotic
(ii) bacteriastatic antibiotic
(iii) narrow spectrum antibiotic
(iv) Broad spectrum antibiotic

Select the correct option denoting the proper sequence of sewage tratment.

Choose the correctly match pair.

The site of infection for yersinia pestis is___________

___________is not a symptom of Kala-azar

________is a plant with hallucinogenic properties

Choose the symptom not seen in amoebiasis

The age of fossils can be determined by

Origin of fishes occurred in ___________ period

Founder's effect is related to

Which one of the following brings about evidence for convergent evolution?

Genetic drift leads to

What is the basis for the difference in the synthesis of the leading and lagging strand of DNA molecules?

The first codon to be deciphered was __________ which codes for ________.

The classical concept of a gene was given by _______.

The term ___________ refers to DNA of Prokaryotes.

In genetic code there are __________ possible triplets.

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

Father of a child is colourblind and mother is carrier for colourblindness, the probability of the child being colourblind is

Improvement of human race by encouraging the healthy persons to marry early and produce large number of children is called

Which of the following is incorrect regarding ZW-ZZ type of sex determination?

The secretors have the I allele in _______.

The approach which does not give the defined action of contraceptive is

Select the incorrect action of hormonal contraceptive pills from the following

Sperm remains active for _____ hours in the female reproductive tract

____ vaccination of girls between 9-13 years can prevent cervical cancer.

______ is needed for normal functioning of reproductive structures

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

The Androgen Binding Protein (ABP) is produced by

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

______ is popularly known as sperm lysin.

The dividing embryo takes ______ days to move to the uterus from the fallopian tube.

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

During favourable conditions ______ shows multiple fission.

If the entire organism behaves as a gamete the Phenomenon is called _____

Human beings exhibit ______

What is the basis for the difference in the synthesis of the leading and lagging strand of DNA molecules?

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 experiment conducted by Griffith was based on_________.

ABO blood group in man is controlled by

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

XO type of sex determination and XY type of sex determination are examples of

_________ proposed the existence of 8 alleles at a single Rh locus.

The lygaeus type (XX - XY) type of sex determination is seen in ______

The approach which does not give the defined action of contraceptive is

Select the incorrect action of hormonal contraceptive pills from the following

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 ______

Formation of chronic ulcer is a symptom of ______

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

Mammalian egg is

The Androgen Binding Protein (ABP) is produced by

_____ are endocrine cells.

____ is not linked to male reproductive system.

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 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

Plasmotomy is observed in ________

Giant Amoeba refers to ______

Budding is seen in ______

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

Assertion (A): The acrosome of the Sperm cell contains Sperm lysin.
Reason (R): Sperm lysin destroys the deformed Sperm cells.

The approach which does not give the defined action of contraceptive is

DOPA stands for __________

A mRNA molecule is produced by

Paratope is an

Allergy involves

Spread of cancerous cells to distant sites is termed as

Which is not a macrophage?

B Cells are activated by

Groundnut is native of _____________

Tectona grandis is coming under family

New world species of cotton

The active principle trans-tetra hydro canabial is present in

The only cereal that has originated and domesticated from the New world.

The quickest method of plant breeding is

Plants having similar genotypes produced by plant breeding are called

Importing better varieties and plants from outside and acclimatising them to local environment is called

Crosses between the plants of the same variety are called

Jaya and Ratna are the semi dwarf varieties of

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

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

The unit for measuring ozone thickness

The plants which are grown in silivpasture system are

Which is not a greenhouse gas?

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

Pond is a type of

Solar energy used by green plants for photosynthesis is only

Ecosystem consists of

Which of the following is / are not the mechanism of decomposition

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

Which of the given plant produces cardiac glycosides?

In soil water available for plants is

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

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

Micro propagation involves

The time duration for sterilization process by using autoclave is ______ minutes and the temperature is _______

Virus free plants are developed from

The prevention of large scale loss of biological interity

Identify the group of scientists who developed the intergenic hybrid - the pomato.

Restriction enzymes are

Plasmids are

Which of the following one is used as a Biosensors?

An analysis of chromosomal DNA using the southern hybridisation technique does not use

Some of the characteristics of Bt cotton are

An allohexaploidy contains

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

Changing the codon AGC to AGA represents

How many map units separate two alleles A and B if the recombination frequency is 0.09?

The following sequence represents the location of genes in a chromosome. A - B - C - M - R - S - y -Z. Which of the gene pairs will have least chance of getting inherited together?

How many different kinds of gametes will be produced by a plant having the genotype AABbCC?

In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seed pant is crossed with a green seeded plant, what ratio of yellow and green seeded plants would you expect in F₁ generation?

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

Fruit colour in squash is an example of

The genes controlling the seven pea characters studied by Mendel are known to be located on how many different chromosomes?

An eminent Indian embryologist is

Identify the correctly matched pair

Identify the incorrect pair

Which of the following represent megagametophyte

In Haplopappus gracilis, number of chromosomes in cells of nucellus is 4. What will be the chromosome number in Primary endosperm cell?

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

Deforestation means

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

The plants which are grown in silivpasture system are

Which is not a greenhouse gas?

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

Solar energy used by green plants for photosynthesis is only

Ecosystem consists of

Significance of food web is / are

Which of the following is / are not the mechanism of decomposition

A specific place in an ecosystem, where an organism lives and performs its functions is

Which of the given plant produces cardiac glycosides?

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

Pedogenesis refers to

Totipotency refers to

The time duration for sterilization process by using autoclave is ______ minutes and the temperature is _______

Virus free plants are developed from

The prevention of large scale loss of biological interity

Solidifying agent used in plant tissue culture is

Which of the following one is used as a Biosensors?

Which one of the following is not correct statement

Some of the characteristics of Bt cotton are

Cohesive ends are _____________

Self-ligation is prevented by____________

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

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

Changing the codon AGC to AGA represents

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

Incomplete linkage was reported by Hutchinson in ___________

Extra nuclear inheritance is a consequence of presence of genes in

In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seed pant is crossed with a green seeded plant, what ratio of yellow and green seeded plants would you expect in F₁ generation?

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

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

“Gametes are never hybrid”. This is a statement of

An eminent Indian embryologist is

Identify the correctly matched pair

Pollen tube was discovered by

Identify the incorrect pair

Which of the following represent megagametophyte

Animals giving birth to young ones:

The site of embryo implantation is the

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

A mRNA molecule is produced by

An operon is a:

Which of the following region has maximum biodiversity

Which one of the following is not coming under insitu conservation

Who introduced the term biodiversity?

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

The grizzled squirrel and lion tailed Macaque are endemic to _____________

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

The ‘thickness’ of Stratospheric Ozone layer is measured in/on:

As per 2017 statistics, the highest per capita emitter of Carbon dioxide in the world is

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

Which among the following always decreases in a Food chain across tropic levels?

All populations in a given physical area are defined as

Competition between species leads to

Which of the following is an r-species

The relationship between sucker fish and shark is__________

Animals that can move from fresh water to sea called as______

The first clinical gene therapy was done for the treatment of

PCR proceeds in three distinct steps governed by temperature, they are in order of

ELISA is mainly used for

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

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

Which of the following pair is correctly

Which of the following is not involved in nitrogen fixation?

CO₂ is not released during

WorId Biofuel day is observed on_______

Aspergillus niger helps to produce________

Exo-erythrocytic schizogony of Plasmodium takes place in _______

Choose the correctly match pair.

Cirrhosis of liver is caused by chronic intake of ______

Allergy involves

AIDS virus has

Taking the example of Peppered moth, explain the action of natural selection. What do you call the above phenomenon?

Darwin's finches and Australian marsupials are suitable examples of adaptive radiation – Justify the statement

Who disproved Lamarck’s Theory of acquired characters? How?

How does Mutation theory of De Vries differ from Lamarck and Darwin’s view in the origin of new species.

Explain stabilizing, directional and disruptive selection with examples

Differentiate between:
Innate immunity and acquired immunity

Differentiate between:
Primary and secondary immune responses

Differentiate between:
Active and passive immunity

Differentiate between:
Humoral and CMI immunity

Differentiate between:
Autoimmune disease and Immunodeficiency disease

Differentiate bio-medicines and botanical medicines.

Write the origin and area of cultivation of green gram and red gram.

What are millets? What are its types? Give example for each type.

If a person drinks a cup of coffee daily it will help him for his health. Is this correct? If it is correct, list out the benefits.

Enumerate the uses of turmeric

How Rhizobium acts as an efficient bio- fertiIizer?

Azolla increases the yield of paddy crop - support your answer.

Mention any three advantages of Arbuscular mycorrhizal association.

What makes the Trichoderma an effective bio-pesticide?

Write a note on Green Manuring.

How do forests help in maintaining the climate?

How do sacred groves help in the conservation of biodiversity?

Which one gas is most abundant out of the four commonest greenhouse gases? Discuss the effect of this gas on the growth of plants?

List out the effects of global warming.

Mention any three sources of carbon dioxide emission.

Construct the food chain with the following data.
Hawk, plants, frog, snake, grasshopper.

Name of the food chain which is generally present in all type of ecosystem. Explain and write their significance.

Shape of pyramid in a particular ecosystem is always different in shape. Explain with example.

Generally human activities are against to the ecosystem, where as you a student how will you help to protect ecosystem?

Explain Grazing food chain with example.

Lichen is considered as a good example of obligate mutualism. Explain.

What is mutualism? Mention any two example where the organisms involved are commercially exploited in modern agriculture.

List any two adaptive features evolved in parasites enabling them to live successfully on their host?

Mention any two significant roles of predation plays in nature.

How does an orchid ophrys ensures its pollination by bees ?

Give the examples for micro propagation performed plants .

Explain the basic concepts involved in plant tissue culture

Based on the material used, how will you classify the culture technology? Explain it.

Mention any three macronutrients and micro nutrients used in MS medium.

What are the optimal conditions that favours the induction of callus from nutrient medium?

What do you know about the word pBR332?

Mention the application of Biotechnology.

What are restriction enzyme. Mention their type with role in Biotechnology.

Is their any possibilities to transfer a suitable desirable gene to host plant without vector? Justify your answer.

How will you identify a vectors?

Explain the structure of immunoglobulin with suitable diagram.

What are the cells involved innate immune system.

What is vaccine? What are its types?

A person is infected by HIV. How will you diagnose for AIDS?

Autoimmunity is a misdirected immune response. Justify.

Explain the role of cry-genes in genetically modified crops.

Write the key features of organic farming.

Justify the role of microbes as a bio-fertilizer

What is 'activated sludge' in sewage treatment?

UV is an ideal disinfectant for waste water. Give Reason

What are transgenic animals? Give examples

If a person thinks he is infected with HIV, due to unprotected sex, and goes for a blood test. Do you think a test such as ELISA will help? If so why? If not, why?

Explain how ADA deficiency can be corrected

What are DNA vaccines?

Differentiate between Somatic cell gene therapy and germline gene therapy

Give the diagnostic characters features of a Biome

Classify the aquatic biomes of Earth.

What are the ways by which organisms respond to abiotic factors?

Classify the adaptive traits found in organisms

Differentiate Natality and Mortality

Extinction of a keystone species led to loss of biodiversity – Justify.

Compare and Contrast the insitu and exsitu conservation.

What are called endangered species? Explain with examples

Why do we find a decrease in biodiversity distribution, if we move from the tropics towards the poles?

What are the factors that drive habitat loss?

What effect can fertilizer runoff have on an aquatic ecosystem?

How can we control eutrophication?

Why does ozone hole form over Antarctica?

Mention the causes of enhanced use of ultraviolet radiation

Discuss the role of women in protection and conservation of forests.

Discuss the importance of Modern methods in reproduction of plants.

What is Cantharophily.

List any two strategy adopted by bisexual flowers to prevent self-pollination.

What is endothelium

“The endosperm of angiosperm is different from gymnosperm”. Do you agree. Justify your answer.

What are multiple alleles?

What are the reasons for Mendel’s successes in his breeding experiment?

Explain the law of dominance in monohybrid cross.

Differentiate incomplete dominance and codominance.

What is meant by cytoplasmic inheritance

From the above figure identify the type of mutation and explain it.

Write the salient features of Sutton and Boveri concept.

Explain the mechanism of crossing over.

Write the steps involved in molecular mechanism of DNA recombination with diagram.

Point out any three salient features of chromosomal theory of inheritance.

The first life on earth originated

The phenomenon of “ Industrial Melanism” demonstrates

Who proposed the Germplasm theory?

Fossils are generally found in

The golden age of reptiles was

Hershey and Chase experiment with bacteriophage showed that

What is the basis for the difference in the synthesis of the leading and lagging strand of DNA molecules?

The first codon to be deciphered was __________ which codes for ________.

When lactose is present in the culture medium:

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

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?

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?

XO type of sex determination and XY type of sex determination are examples of

Match the following
I) External fertilization i) pollen grain
II) Androecium ii)anther wall
III) Male gametophyte iii)algae
IV) Primary parietal layer iv)stamens

Identify the incorrect pair

Assertion : Sporopollenin preserves pollen in fossil deposits
Reason : Sporopollenin is resistant to physical and biological decomposition

Consider the following statement(s)
i) In Protandrous flowers pistil matures earlier
ii) In Protogynous flowers pistil matures earlier
iii) Herkogamy is noticed in unisexual flowers
iv) Distyly is present in Primula

In Mendel’s experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F2 generation of the cross RRYY x rryy?

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

The approach which does not give the defined action of contraceptive is

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.

Select the incorrect action of hormonal contraceptive pills from the following

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

Distinguish between structural gene, regulatory gene and operator gene

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

Why the human genome project is called a mega project?

From their examination of the structure of DNA, What did Watson and Crick infer about the probable mechanism of DNA replication, coding capability and mutation?

Why tRNA is called an adapter molecule?

Differentiate Intersexes from Supersexes

Explain the genetic basis of ABO blood grouping man.

How is sex determined in human beings?

Explain male heterogamety

Give an account of genetic control of Rh factor.

Expand the following
a) ZIFT
b) ICSI

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

Differentiate foeticide and infanticide

Describe the major STDs and their symptoms.

What is GIFT?

What is inhibin? State its functions

Mention the importance of the position of the testes in humans.

What is the composition of semen?

Name the hormones produced from the placenta during pregnancy.

Define gametogenesis.

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

Why is the offspring formed by asexual reproduction referred as a clone?

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

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

(i) Identify the Process
(ii) Name the Organism

Mention the contribution of Hofmeister towards Embryology.

What is layering?

Distinguish mound layering and air layering.

Explain the conventional methods adopted in vegetative propagation of higher plants.

What are diaspores?

Name the seven contrasting traits of Mendel.

What is meant by true breeding or pure breeding lines / strain?

Give the names of the scientists who rediscovered Mendelism

What is back cross?

Define Genetics.

When two different genes came from same parent they tend to remain together.
i) What is the name of this phenomenon?
ii) Draw the cross with suitable example.
iii) Write the observed phenotypic ratio.

If you cross dominant genotype PV/PV male Drosophila with double recessive female and obtain F1 hybrid. Now you cross F1 male with double recessive female.
i) What type of linkage is seen?
ii) Draw the cross with correct genotype.
iii) What is the possible genotype in F2 generation?

i) What is the name of this test cross?
ii) How will you construct gene mapping from the above given data?
iii) Find out the correct order of genes.

What is the difference between missense and nonsense mutation?

What does the condition synteny refers to?

How do you use the biotechnology in modern practice?

What are the materials used to grow microorganism like Spirulina?

You are working in a biotechnology lab with a becterium namely E.coli. How will you cut the nucleotide sequence? explain it.

What are the enzymes you can used to cut terminal end and internal phospho di ester bond of nucleotide sequence?

Name the chemicals used in gene transfer.

What is the name of the process given below? Write its 4 types.

How will you avoid the growing of microbes in nutrient medium during culture process? What are the techniques used to remove the microbes?

Write the various steps involved in cell suspension culture.

What do you mean Embryoids? Write its application.

Define sterilization.

What is ecological hierarchy? Name the levels of ecological hierarchy.

What are ecological equivalents? Give one example

‘Green algae are not likely to be found in the deepest strata of the ocean’. Give at least one reason.

What is Albedo effect and write their effects?

The organic horizon is generally absent from agricultural soils because tilling, e.g., plowing, buries organic matter. Why is an organic horizon generally absent in desert soils ?

Productivity of profundal zone will be low. Why?

Discuss the gross primary productivity is more efficient than net primary productivity.

Pyramid of energy is always upright. Give reasons

What will happen if all producers are removed from ecosystem?

Mention any two climatic factors and edaphic factors of an ecosystem.

What is ozone hole?

Give four examples of plants cultivated in commercial agroforestry.

Expand CCS.

Methane is one of a potent green house gas. Point out a few sources from where methane is generated.

What is Dobson unit?

Differentiate primary introduction from secondary introduction.

How are microbial innoculants used to increase the soil fertility?

What are bio-pesticides? Why they are considered better than synthetic pesticides?

Define acclimatization.

Who coined the term "pureline"? Define it.

Write the cosmetic uses of Aloe.

What is pseudo cereal? Give an example.

Discuss which wood is better for making furniture.

A person got irritation while applying chemical dye. What would be your suggestion for alternative?

Name the humors that are responsible for the health of human beings.

How does immune system work?

What are interferons? Mention their role.

List out chemical alarm signals produced during inflammation.

Define acquired immunity.

What is MALT and BALT?

Expand
(i) CFC
(ii) AQI
(iii) PAN

What is SMOG and how it is harmful for us?

List all the wastes that you generate, at home, school or during your trips to other places. Could you very easily reduce the generation of these wastes? Which would be difficult or rather impossible to reduce?

Discuss the causes and effects of global warming. What measures need to be taken to control global warming?

What would Earth be like without the greenhouse effect?

Define ecological niche.

What is Zero Stress?

What is soil permeability?

State Allen's rule.

Mention the important behavioural adaptations seen is animals

Define endemism

How many hotspots are there in India? Name them

What are the three levels of biodiversity?

Name the active chemical found in the medicinal plant Rauwolfia vomitoria. What type of diversity it belongs to?

“Amazon forest is considered to be the lungs of the planet”- Justify this statement.

Mention the number of primers required in each cycle of PCR. Write the role of primers and DNA polymerase in PCR. Name the source organism of the DNA polymerase used in PCR.

How is the amplification of a gene sample of interest carried out using PCR?

What is genetically engineered Insulin?

Explain how “Rosie” is different from a normal cow

How was Insulin obtained before the advent of rDNA technology? What were the problems encountered?

How is milk converted into curd? Explain the process of curd formation

Give any two bioactive molecules produced by microbes and state their uses.

What is biological oxygen demand?

What is antibiotic resistance?

What is superbugt?