Antivenom injection contains preformed antibodies
while polio drops that are administered into the body
contain :-
(1) Activated pathogens
(2) Harvested antibodies
(3) Gamma globulin
(4) Attenuated pathogens

Which one of the following cell organelles is enclosed
by a single membrane ?
(1) Mitochondria
(2) Chloroplasts
(3) Lysosomes
(4) Nuclei

Lack of relaxation between successive stimuli in
sustained muscle contraction is known as :-
(1) Spasm
(2) Fatigue
(3) Tetanus
(4) Tonus

Which of the following is not a stem modification?
(1) Pitcher of Nepenthes
(2) Thorns of citrus
(3) Tendrils of cucumber
(4) Flattened structures of Opuntia

Water soluble pigments found in plant cell vacuoles
are :-
(1) Xanthophylls
(2) Chlorophylls
(3) Carotenoids
(4) Anthocyanins

Select the correct statement :-
(1) Gymnosperms are both homosporous and
heterosporous
(2) Salvinia, Ginkgo and Pinus all are gymnosperms
(3) Sequoia is one of the tallest trees
(4) The leaves of gymnosperms are not well adapted
to extremes of climate

Which of the following is not required for any of the
techniques of DNA fingerprinting available at
present ?
(1) Polymerase chain reaction
(2) Zinc finger analysis
(3) Restriction enzymes
(4) DNA-DNA hybridization

Which type of tissue correctly matches with its
location ?
Tissue Location
(1) Smooth muscle Wall of intestine
(2) Areolar tissue Tendons
(3) Transitional Tip nose
epithelium
(4) Cuboidal Lining of
epithelium stomach

A plant in your garden avoids photorespiratory
losses, has improved water use efficiency shows high
rates of photosynthesis at high temperatures and
has improved efficiency of nitrogen utilisation. In
which of the following physiological groups would
you assign this plant ?
(1) ``C_3 ``
(2) ``C_4``
(3) CAM
(4) Nitrogen fixer

Which of the following structures is homologus
to the wing of a bird ?
(1) Dorsal fin of a Shark
(2) Wing of a Moth
(3) Hind limb of Rabbit
(4) Flipper of Whale

Which of the following characteristic features always
holds true for the corresponding group of animals?
(1) Cartilaginous Chondrichthyes
endoskeleton
(2) Viviparous Mammalia
(3) Possess a mouth Chordata
with an upper
and a lower
jaw
(4) 3 - chambered heart Reptilia
with one incompletely
divided ventricle

Which of the following statements is not true for
cancer cells in relation to mutations ?
(1) Mutations in proto-oncogenes accelerate the cell
cycle.
(2) Mutations destroy telomerase inhibitor.
(3) Mutations inactive the cell control.
(4) Mutations inhibit production of telomerase.

The amino acid Tryptophan is the precursor for the
synthesis of :-
(1) Melatonin and Serotonin
(2) Thyroxine and Triiodothyronine
(3) Estrogen and Progesterone
(4) Cortisol and Cortisone

Following are the two statements regarding
the origin of life :-
a) The earliest organisms that appeared on the
earth were non-green and presumably anaerobes.
(b) The first autotrophic organisms were the
chemoautotrophs that never released oxygen.
Of the above statements which one of the following
options is correct ?
(1) (a) is correct but (b) is false.
(2) (b) is correct but (a) is false.
(3) Both (a) and (b) are correct.
(4) Both (a) and (b) are false.

Reduction in pH of blood will :-
(1) reduce the rate of heart beat.
(2) reduce the blood supply to the brain.
(3) decrease the affinity of hemoglobin with oxygen.
(4) release bicarbonate ions by the liver.