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) : In bee society, all the members are diploid except drones.
Reason (R) : Drones are produced by parthenogenesis
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)

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

Ovovivipary is seen in ______

(a)

Solenobia

(b)

Humans

(c)

Birds

(d)

Shark

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

(a)

Thelytoky

(b)

paedogenesis

(c)

Amphitoky

(d)

Arrhenotoky

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

(a)

iii and iv

(b)

i and iii

(c)

ii and iv

(d)

i and iv

The male homologue of the female clitoris is ______.

(a)

Scrotum

(b)

Penis

(c)

Urethra

(d)

Testis

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

(a)

R explains A

(b)

A is right R is wrong

(c)

A an R are right R does not explains A

(d)

Both A and R are wrong

The scrotum acts as _____ for spermatogenesis.

(a)

chemoregulator

(b)

thermoregulator

(c)

enzyme regulator

(d)

photo regulator

Identify the correct sequence of reproductive events in human beings.

(a)

Insemination, Implantation, Fertilization, Parturition and Placentation

(b)

Implantation, Fertilization, Insemination, Placentation and Parturition.

(c)

Implantation, Insemination, Fertilization, Parturition and Placentation

(d)

Insemination, Fertilization, Implantation, Placentation and Parturition.

A contraceptive pill prevents ovulation by ______.

(a)

blocking fallopian tube

(b)

inhibiting release of FSH and LH

(c)

stimulating release of FSH and LH

(d)

causing immediate degeneration of released ovum.

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

(a)

I^A I^B and I^oI^o

(b)

I^A I^o and I^BI^o

(c)

I^B I^B and I^A I^A

(d)

I^A I^A and I^oI^o

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)

I^A I^A and I^B I^o

(b)

I^A I^o and I^B I^o

(c)

I^A I^o and I^oI^o

(d)

I^oI^o and I^B I^B

Evolutionary history of an organism is called

(a)

Ancestry

(b)

ontogeny

(c)

phylogeny

(d)

paleontology

Australian ape Man refers to

(a)

Ramapithecus

(b)

Australopithecus

(c)

Dryopithecus

(d)

Sivapithecus

Identify the wrong statement.

(a)

Vaccine provide passive acquired immunity

(b)

It is made from attenuated or killed microbes

(c)

Vaccines teach our body how to defend from microbes

(d)

MMR is a fist generation vaccine

Using recombinant E.Coli, mass production of hGH is carried out by_______

(a)

genetic engineering

(b)

biotechnology

(c)

fermentation technology

(d)

recombinant DNA

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

Column I	Column II
A. Mutalism	1. Lion and deer
B. Commensalism	2. Round worm and man
C. Parasitism	3. Birds compete with squirrels for nuts
D. Competition	4. Sea anemone on hermit crab
E. Predation	5. Barnacles attached to Whales.

(a)

A- 4, B-5, C-2, D –3, E-1

(b)

A- 3, B-1, C-4, D – 2, E-5

(c)

A- 2, B-3, C-1, D – 5, E-4

(d)

A- 5, B-4, C-2, D – 3, E-1

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)

First cell of male gametophyte in angiosperm is ______.

(a)

Microspore

(b)

megaspore

(c)

Nucleus

(d)

Primary Endosperm Nucleus

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

(a)

The two genes are located on two different chromosomes

(b)

Chromosomes failed to separate during meiosis

(c)

The two genes are linked and present on the some chromosome

(d)

Both of the characters are controlled by more than one gene

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

(a)

Electrophoresis

(b)

Blotting

(c)

Autoradiography

(d)

Polymerase Chain Reaction

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

(a)

at very low temperature by using ether.

(b)

at very high temperature by using liquid nitrogen

(c)

at very low temperature of -196°C by using liquid nitrogen

(d)

at very low temperature by using liquid nitrogen

In soil water available for plants is ____.

(a)

gravitational water

(b)

chemically bound water

(c)

capillary water

(d)

hygroscopic water

Pond is a type of ______.

(a)

forest ecosystem

(b)

grassland ecosystem

(c)

marine ecosystem

(d)

fresh water ecosystem

Plants having similar genotypes produced by plant breeding are called _____.

(a)

clone

(b)

haploid

(c)

autopolyploid

(d)

genome

Tamarindus indica is indigenous to _____.

(a)

Tropical African region

(b)

South India, Sri Lanka

(c)

South America, Greece

(d)

India alone