Which of the statements given below is not
true about formation of Annual Rings in trees?
(1) Annual ring is a combination of spring
wood and autumn wood produced in a year.
(2) Differential activity of cambium causes
light and dark bands of tissue early and
late wood respectively.
(3) Activity of cambium depends upon
variation in climate.
(4) Annual rings are not prominent in trees of
temperate region.

Which of the following ecological pyramids is
generally inverted?
(1) Pyramid of numbers in grassland
(2) Pyramid of energy
(3) Pyramid of biomass in a forest
(4) Pyramid of biomass in a sea

Placentation in which ovules develop on the
inner wall of the ovary or in peripheral part, is
(1) Basal
(2) Axile
(3) Parietal
(4) Free central

Which of the following protocols did aim for
reducing emission of chlorofluorocarbons into
the atmosphere?
(1) Montreal Protocol
(2) Kyoto Protocol
(3) Gothenburg Protocol
(4) Geneva Protocol

Which of the following contraceptive methods
do involve a role of hormone?
(1) Lactational amenorrhea, Pills Emergency
contraceptives.
(2) Barrier method, Lactational amenorrhea,
Pills.
(3) CuT, Pills, Emergency contraceptives.
(4) Pills, Emergency contraceptives, Barrier
methods.

Tidal Volume and Expiratory Reserve Volume
of an athlete is 500 mL and 1000 mL,
respectively. What will be his Expiratory
Capacity if the Residual Volume is 1200 mL?
(1) 1500 mL
(2) 1700 mL
(3) 2200 mL
(4) 2700 mL

What is the fate of the male gametes
discharged in the synergid?
(1) One fuses with egg other(s) degenerate
(s) in the synergid.
(2) All fuse with the egg.
(3) One fuses with the egg, other(s) fuse(s)
with synergid nucleus.
(4) One fuses with the egg and other fuses
with central cell nuclei.

What is the site of perception of photoperiod
necessary for induction of flowering in
plants?
(1) Lateral buds
(2) Pulvinus
(3) Shoot apex
(4) Leaves

Select the correctly written scientific name of
Mango which was first described by Carolus Linnaeus
(1) Mangifera indica Car. Linn.
(2) Mangifera indica Linn.
(3) Mangifera indica
(4) Mangifera Indica

Following statements describe the
characteristics of the enzyme Restriction
Endonuclease. Identify the incorrect
statement.
(1) The enzyme cuts DNA molecule at
identified position within the DNA.
(2) The enzyme binds DNA at specific sites
and cuts only one of the two strands.
(3) The enzyme cuts the sugar-phosphate
backbone at specific sites on each strand.
(4) The enzyme recognizes a specific
palindromic nucleotide sequence in the
DNA.

From evolutionary point of view, retention of
the female gametophyte with developing
young embryo on the parent sporophyte for
some time, is first observed in
(1) Liverworts
(2) Mosses
(3) Pteridophytes
(4) Gymnosperms

In Antirrhinum (Snapdragon), a red flower
was crossed with a white flower and in ``F_1`` generation pink flowers were obtained. When
pink flowers were selfed, the ``F_2``
generationshowed white, red and pink flowers. Choose
the incorrect statement from the following :
(1) This experiment does not follow the
Principle of Dominance.
(2) Pink colour in ``F_1`` is due to incomplete
dominance.
(3) Ratio of ``F_2``
is ``\frac14`` (Red) : ``\frac24``(Pink) : ``\frac14`` (White)
(4) Law of Segregation does not apply in this
experiment

Conversion of glucose to glucose-6-phosphate,
the first irreversible reaction of glycolysis, is
catalyzed by
(1) Aldolase
(2) Hexokinase
(3) Enolase
(4) Phosphofructokinase

Drug called ‘Heroin’ is synthesized by
(1) methylation of morphine
(2) acetylation of morphine
(3) glycosylation of morphine
(4) nitration of morphine

Select the hormone-releasing Intra-Uterine
Devices.
(1) Vaults, LNG-20
(2) Multiload 375, Progestasert
(3) Progestasert, LNG-20
(4) Lippes Loop, Multiload 375