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 (A): Offsprings produced by asexual reproduction are genetically identical to the parent.
Reason(R): Asexual reproduction involves only mitosis and no meiosis.
Codes:
A. If both A and R are true and R is correct explanation for A
B. If both A and R are true but R is not the correct explanation for A
C. If A is true but R is false
D. If both A and R are false.

(a)

both A and R are true and R is correct explanation for A

(b)

If both A and R are true but R is not the correct explanation for A

(c)

If A is true but R is false

(d)

If both A and R are false.

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

(a)

1-C 2-E 3-A 4-D 5-B

(b)

1-B 2-D 3-C 4-E 5-A

(c)

1-D 2-E 3-B 4-C 5-A

(d)

1-A 2-E 3-D 4-B 5-C

______ is not linked to polymenorrhoea

(a)

Shorter cycle

(b)

Gland activity

(c)

Malnutrition

(d)

Pain

Klinefelters syndrome is characterized by a karyotype of ____.

(a)

XYY

(b)

XO

(c)

XXX

(d)

XXY

A mRNA molecule is produced by _____.

(a)

Replication

(b)

Transcription

(c)

Duplication

(d)

Translation

The wings of birds and butterflies is an example of

(a)

Adaptive radiation

(b)

convergent evolution

(c)

divergent evolution

(d)

variation

Amphetamines are stimulants of the CNS, whereas barbiturates are ______

(a)

CNS stimulant

(b)

both a and b

(c)

hallucinogenic

(d)

CNS depressants

Statement 1: Saccharomyces cerevisiae is commonly called as Baker's yeast.
Statement 2: Yogurt is produced by the fermentation of milk by Saccharomyces cerevisiae

(a)

Statement 1 is correct. Statement 2 is incorrect

(b)

Statement 1 is incorrect. Statement 2 is correct

(c)

Both the statements 1 and 2 are incorrect

(d)

Both the statements 1 and 2 are correct.

Best and Banting isolated insulin from pancreatic islets of___________

(a)

E.coli

(b)

yeast

(c)

dog

(d)

pig

Through PCR technique, amplication of_________ is possible with reverse transcriptase

(a)

DNA

(b)

rRNA

(c)

tRNA

(d)

mRNA

Stirred - tank bioreactors have been designed for

(a)

Addition of preservatives of the product

(b)

Purification of the product

(c)

Ensuring anaerobic conditions in the culture vessel

(d)

Availability of oxygen throughout the process

Arrange the steps of PCR in proper sequence

(a)

Denaturation, Primer extension, Renaturation

(b)

Renaturation, Denaturation, Primer extension

(c)

Primer extension, Denaturation, Renaturati

(d)

Denaturation, Renaturation, Primer extension

Consider the following four conditions (A-D) and select the correct pair of them as adaptation to environment in desert lizards.
The conditions:
A) Burrowing in soil to escape high temperature.
B) Losing heat rapidly from the body during high temperature
C) Bask in sun when temperature is low
D) Insulating body due to thick fatty dermis.

(a)

(A) and (C)

(b)

(B) and (D)

(c)

(A) and (B)

(d)

(C) and (D)

Project tiger was first launched in ____________

(a)

1973

(b)

1978

(c)

1999

(d)

2001

Ozone is found in the ________ layer of the atmosphere.

(a)

Ionosphere

(b)

Thermosphere

(c)

Stratosphere

(d)

Mesosphere

BOD stands for_______

(a)

Biological Oxidation Demand

(b)

Biotic Oxygen Deficient

(c)

Biological Oxygen Deficit

(d)

Biochemical Oxidation Deficit

Assertion (A): Carica papaya is a dioecious plant.
Reason (R): Both male and female flowers are borne on same plant.

(a)

A is correct R is incorrect.

(b)

R explains A.

(c)

Both A and R are incorrect.

(d)

Both A and R are correct. R does not explain A.

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

(a)

A	B	C	D
Synergid	Egg	polar nuclei	Antipodals

(b)

A	B	C	D
Antipodals	Synergid	polar nuclei	Egg

(c)

A	B	C	D
Egg	Synergid	Antipodals	polar nuclei

(d)

A	B	C	D
Antipodals	polar nuclei	Egg	Synergid

Result of incomplete dominance is __________

(a)

Intermediate genotype

(b)

Intermediate phenotype

(c)

Recessive phenotype

(d)

Epistasis

Micro propagation involves _____.

(a)

vegetative multiplication of plants by using micro-organisms.

(b)

vegetative multiplication of plants by using small explants.

(c)

vegetative multiplication of plants by using microspores.

(d)

Non-vegetative multiplication of plants by using microspores and megaspores.

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

(a)

 i only

(b)

ii only 

(c)

 i and iv only

(d)

ii and iii only

Which of the following ecosystem has the highest primary productivity?

(a)

Pond ecosystem

(b)

Lake ecosystem

(c)

Grassland ecosystem

(d)

Forest ecosystem

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.

(a)

Statement A is correct and Statement B is wrong

(b)

Both Statements A and B are correct

(c)

Statement A is correct and Statement B is wrong.

(d)

Both statements A and B are wrong

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

(a)

i	ii	iii	iv
I	II	III	IV

(b)

i	ii	iii	iv
III	I	IV	II

(c)

i	ii	iii	iv
IV	II	I	IV

(d)

i	ii	iii	iv
II	IV	III	I

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

(a)

iron

(b)

carbohydrates

(c)

proteins

(d)

vitamins