Meiotic division of the secondary oocyte is
completed :
(1) Prior to ovulation
(2) At the time of copulation
(3) After zygote formation
(4) At the time of fusion of a sperm with an
ovum

According to Robert May, the global species
diversity is about :
(1) 1.5 million
(2) 20 million
(3) 50 million
(4) 7 million

The first phase of translation is :
(1) Binding of mRNA to ribosome
(2) Recognition of DNA molecule
(3) Aminoacylation of tRNA
(4) Recognition of an anti-codon

Which of the following regions of the globe exhibits
highest species diversity ?
(1) Western Ghats of India
(2) Madagascar
(3) Himalayas
(4) Amazon forests

Which of the following statements is not
correct ?
(1) In man insulin is synthesised as a
proinsulin.
(2) The proinsulin has an extra peptide called
C-peptide.
(3) The functional insulin has A and B chains
linked together by hydrogen bonds.
(4) Genetically engineered insulin is produced
in E-Coli.

The transverse section of a plant shows following
anatomical features :
-(a) Large number of scattered vascular bundles
surrounded by bundle sheath.
(b) Large conspicuous parenchymatous ground
tissue.
(c) Vascular bundles conjoint and closed.
(d) Phloem parenchyma absent.
Identify the category of plant and its part :
(1) Monocotyledonous stem
(2) Monocotyledonous root
(3) Dicotyledonous stem
(4) Dicotyledonous root

Match the following columns and select the
correct option.
Column - I Column - II
-(a) 6 - 15 pairs of (i) Trygon
gill slits
(b) Heterocercal (ii) Cyclostomes
caudal fin
(c) Air Bladder (iii) Chondrichthyes
(d) Poison sting (iv) Osteichthyes
-(a) (b) (c) (d)
(1) (ii) (iii) (iv) (i)
(2) (iii) (iv) (i) (ii)
(3) (iv) (ii) (iii) (i)
(4) (i) (iv) (iii) (ii)

From his experiments, S.L. Miller produced amino
acids by mixing the following in a closed flask :
(1) ``\ce{CH4}`` , ``\ce{H2}``, ``\ce{NH3}`` and water vapor at 8008°C
(2) ``\ce{CH3},\ce{H2}, \ce{NH4}`` and water vapor at 8008°C
(3) ``\ce{CH4},\ce{H2},\ce{NH3}`` and water vapor at 6008°C
(4) ``\ce{CH3},\ce{H2},\ce{NH3}`` and water vapor at 6008°C

Embryological support for evolution was
disapproved by :
(1) Karl Ernst von Baer
(2) Alfred Wallace
(3) Charles Darwin
(4) Oparin

The process responsible for facilitating loss of water
in liquid form from the tip of grass blades at night
and in early morning is :
(1) Transpiration
(2) Root pressure
(3) Imbibition
(4) Plasmolysis

Secondary metabolites such as nicotine, strychnine
and caffeine are produced by plants for their :
(1) Nutritive value
(2) Growth response
(3) Defence action
(4) Effect on reproduction

The oxygenation activity of RuBisCo enzyme in
photorespiration leads to the formation of :
(1) 2 molecules of 3-C compound
(2) 1 molecule of 3-C compound
(3) 1 molecule of 6-C compound
(4) 1 molecule of 4-C compound and 1 molecule
of 2-C compound

Bt cotton variety that was developed by the
introduction of toxin gene of Bacillus thuringiensis
(Bt) is resistant to :
(1) Insect pests
(2) Fungal diseases
(3) Plant nematodes
(4) Insect predators

Which of the following refer to correct example(s)
of organisms which have evolved due to changes
in environment brought about by anthropogenic
action ?
-(a) Darwin’s Finches of Galapagos islands.
(b) Herbicide resistant weeds.
(c) Drug resistant eukaryotes.
(d) Man-created breeds of domesticated animals
like dogs.
(1) only -(a)
(2) -(a) and (c)
(3) (b), (c) and (d)
(4) only (d)

Identify the wrong statement with reference to
immunity.
(1) When exposed to antigen (living or dead)
antibodies are produced in the host’s body.
It is called “Active immunity”.
(2) When ready-made antibodies are directly
given, it is called “Passive immunity”.
(3) Active immunity is quick and gives full
response.
(4) Foetus receives some antibodies from
mother, it is an example for passive
immunity.