Chrysophytes, Euglenoids, Dinoflagellates and Slime
moulds are included in the kingdom :-
(1) Monera
(2) Protista
(3) Fungi
(4) Animalia

Water vapour comes out from the plant leaf
through the stomatal opening. Through the same
stomatal opening carbon dioxide diffuses into the
plant during photosynthesis. Reason out the above
statements using one of following options :-
(1) Both processes cannot happen simultaneously.
(2) Both processes can happen together because
the diffusion coefficient of water and ``CO_2`` is
different.
(3) The above processes happen only during night
time.
(4) One process occurs during day time, and the
other at night.

In mammals, which blood vessel would normally
carry largest amount of urea ?
(1) Renal Vein
(2) Dorsal Aorta
(3) Hepatic Vein
(4) Hepatic Portal Vein

Seed formation without fertilization in flowering
plants involves the process of :-
(1) Sporulation
(2) Budding
(3) Somatic hybridization
(4) Apomixis

Which of the following is wrongly matched in the
given table ?
Microbe Product Application
(1)Trichoderma Cyclosporin A immunosup-
polysporum pressive drug
(2)Monascus Statins lowering of
purpureus blood
cholesterol
(3)Streptococcus Streptokinase removal of
clot from
blood vessel
(4)Clostridium Lipase removal of
butylicum oil stains

In a testcross involving F1 dihybrid flies, more
parental-type offspring were produced than the
recombinant-type offspring. This indicates :-
(1) The two genes are located on two different
chromosomes.
(2) Chromosomes failed to separate during meiosis.
(3) The two genes are linked and present on the
same chromosome.
(4) Both of the characters are controlled by more
than one gene.

It is much easier for a small animal to run uphill than
for a large animal, because :-
(1) It is easier to carry a small body weight.
(2) Smaller animals have a higher metabolic rate.
(3) Small animals have a lower O2 requirement.
(4) The efficiency of muscles in large animals is less
than in the small animals.

Which of the following is not a characteristic feature
during mitosis in somatic cells ?
(1) Spindle fibres
(2) Disappearance of nucleolus
(3) Chromosome movement
(4) Synapsis

Which of the following statements is not correct ?
(1) Pollen grains of many species can germinate on
the stigma of a flower, but only one pollen tube
of the same species grows into the style.
(2) Insects that consume pollen or nectar
without bringing about pollination are called
pollen/nectar robbers.
(3) Pollen germination and pollen tube growth are
regulated by chemical components of pollen
interacting with those of the pistil.
(4) Some reptiles have also been reported as
pollinators in some plant species.

Specialised epidermal cells surrounding the guard
cells are called :-
(1) Complementary cells
(2) Subsidiary cells
(3) Bulliform cells
(4) Lenticels

Which of the following guards the opening of
hepatopancreatic duct into the duodenum ?
(1) Semilunar valve
(2) Ileocaecal valve
(3) Pyloric sphincter
(4) Sphincter of Oddi

Stems modified into flat green organs performing
the functions of leaves are known as :-
(1) Cladodes
(2) Phyllodes
(3) Phylloclades
(4) Scales

The primitive prokaryotes responsible for the
production of biogas from the dung of ruminant
animals, include the :-
(1) Halophiles
(2) Thermoacidiophiles
(3) Methanogens
(4) Eubacteria

A river with an inflow of domestic sewage rich in
organic waste may result in :-
(1) Drying of the river very soon due to algal bloom.
(2) Increased population of aquatic food web
organisms.
(3) An increased production of fish due to
biodegradable nutrients.
(4) Death of fish due to lack of oxygen.

A cell at telophase stage is observed by a student
in a plant brought from the field. He tells his teacher
that this cell is not like other cells at telophase stage.
There is no formation of cell plate and thus the cell
is containing more number of chromosomes as
compared to other dividing cells. This would result
in :-
(1) Aneuploidy
(2) Polyploidy
(3) Somaclonal variation
(4) Polyteny