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

(a)

first

(b)

second

(c)

third

(d)

seventh

Kin selection is seen in _______

(a)

Honey bees

(b)

Drosophila

(c)

Grasshopper

(d)

Cockroach

The codon _________ codes for phenylalanine

(a)

UAA

(b)

UUU

(c)

UCU

(d)

UAC

AUG code is for ________

(a)

Arginine

(b)

Tyrosine

(c)

Tryptophan

(d)

Methionine

The Neanderthal man had the brain capacity of

(a)

650 – 800cc

(b)

1200cc

(c)

900cc

(d)

1400cc

According to Neo Darwinism change in the frequency of genes in population arise due to all Except.

(a)

Natural selection

(b)

Mutation

(c)

Struggle for existence

(d)

Variation

________________ test is done to confirm typhoid.

(a)

ELISA

(b)

Western blot

(c)

Widal test

(d)

Southern blot

Identify the correct statement(s).
(i) Totipotency is the ability of single cell to produce a whole organism.
(ii) Pluripotency refers to ability of stem cell with apotential to differentiate into any kind of germ layers.
(iii) Unipotency refers to ability of stem cell to differentiate into one cell type.
(iv) Oligopotency refers to stem cells to differentiate into few cell types.

(a)

i and iii

(b)

ii and iv

(c)

i and iv

(d)

all the above

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

(a)

A	B	C
Conformer	Regulator	Partial Regulator

(b)

A	B	C
Regulator	Partial Regulator	Conformer

(c)

A	B	C
Partial Regulator	Regulator	Conformer

(d)

A	B	C
Regulator	Conformer	Partial Regulator

Locomotory speed of an organism changes due to light. This phenomenon is referred as _____________

(a)

Photonasty

(b)

Photokinesis

(c)

Phototropism

(d)

Phototaxis

The organization which published the red list of species is

(a)

WWF

(b)

IUCN

(c)

ZSI

(d)

UNEP

Species introduced deliberately in an area are referred as_______

(a)

Endemic species

(b)

Vulnerable species

(c)

Exotic species

(d)

Extinct species

Treatment of sewage involves

(a)

Floatation, Filtration and Sedimentation of suspended particles

(b)

Aerating it for bacterial action

(c)

Removal of nitrates and phosphates

(d)

All of the above

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

In case of co-dominance, monohybrid F ₁ __________ is 1: 2: 1

(a)

Genotype ratio

(b)

Phenotype ratio

(c)

Both genotype & Phenotype ratio

(d)

Ratio is wrong

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

(a)

Tetrad stage ~ Synapsis ~ Bivalent stage ~ cross over

(b)

Syndesis ~ Tetrad ~ Crossing over ~ Terminalisation

(c)

Terminalisation ~ Tetrad ~ Bivalent ~ Cross over

(d)

Cross over ~ Bivalent ~ Tetrad ~ Terminalisation

A vector should________
(i) contain suitable marker
(ii) contain ori site
(iii) have poly linkess
(iv) be small in size

(a)

i, ii and iii

(b)

ii, iii and iv

(c)

i, ii and iv

(d)

all the above

Assertion (A) : Incubation is followed by Inoculation.
Reason (R) : Explant is inoculated to media.

(a)

Both A and R are correct but R is not a correct explanation to A

(b)

R explains A

(c)

A is correct R is incorrect

(d)

Both A and R are incorrect

The study of soil is called as __________

(a)

Lithotripsy

(b)

Lithosphere

(c)

Pedology

(d)

Pedigree analysis

Observe the figures and select the correct type of pyramid of numbers.

(a)

A	B	C
Grassland ecosystem	Forest ecosystem	Parasite ecosystem

(b)

A	B	C
Grassland ecosystem	Pond ecosystem	Forest ecosystem

(c)

A	B	C
Forest ecosystem	Grassland ecosystem	Parasite ecosystem

(d)

A	B	C
Pond ecosystem	Forest ecosystem	Grassland ecosystem

Which is not a true statement regarding rainwater harvesting?

(a)

Mitigates groundwater quality

(b)

Reduces soil erosion

(c)

Decreases soil salinity

(d)

No wastage of land for storing

Statement (1): Clonal selection is carried out in asexually propagating plants.
Statement (2): Clones show similar genotypes.

(a)

Statement 1 is correct and Statement 2 is incorrect

(b)

Statement 1 is incorrect and Statement 2 is correct

(c)

Both the statements are correct

(d)

Both the statements are incorrect

Assertion (A): Black pepper is a spice.
Reason (R): Condiments are flavouring substances, generally added after the cooking of food.

(a)

A is right R is wrong

(b)

R explains A

(c)

Both A and R are right. R is not correct explanation for A.

(d)

Both A and R are wrong

The first disease for which vaccine was prepared is _______

(a)

Polio

(b)

Chicken pox

(c)

Cholera

(d)

Small pox

______ is the first one to encounter the antigen that enters tissue spaces.

(a)

Spleen

(b)

Lymph node

(c)

Bone marrow

(d)

GALT