Which one of the following plants shows a very
close relationship with a species of moth, where
none of the two can complete its life cycle without
the other?
(1) Hydrilla
(2) Yucca
(3) Banana
(4) Viola

Hormones secreted by the placenta to maintain
pregnancy are
(1) hCG, hPL, progestogens, prolactin
(2) hCG, hPL, estrogens, relaxin, oxytocin
(3) hCG, hPL, progestogens, estrogens
(4) hCG, progestogens, estrogens, glucocorticoids

The contraceptive 'SAHELI'
(1) blocks estrogen receptors in the uterus,
preventing eggs from getting implanted.
(2) increases the concentration of estrogen and
prevents ovulation in females.
(3) is an lUD.
(4) is a post-coital contraceptive.

The difference between spermiogenesis and
spermiation is
(1) In spermiogenesis spermatids are formed, while
in spermiation spermatozoa are formed.
(2) In spermiogenesis spermatozoa are formed,
while in spermiation spermatids are formed.
(3) In spermiogenesis spermatozoa from Sertoli
cells are released into the cavity of seminiferous
tubules, while in spermiation spermatozoa are
formed.
(4) In spermiogenesis spermatozoa are formed,
while in spermiation spermatozoa are released
from Sertoli cells into the cavity of seminiferous
tubules.

The amnion of mammalian embryo is derived from
(1) ectoderm and mesoderm
(2) endoderm and mesoderm
(3) mesoderm and trophoblast
(4) ectoderm and endoderm

In a growing population of a country
(1) pre-reproductive individuals are more than the
reproductive individuals.
(2) reproductive individuals are less than the post-
reproductive individuals.
(3) reproductive and pre-reproductive individuals
are equal in number.
(4) pre-reproductive individuals are less than the
reproductive individuals.

All of the following are included in 'Ex-situ
conservation' except
(1) Wildlife safari parks (2) Sacred groves
(3) Botanical gardens (4) Seed banks

Which part of poppy plant is used to obtain the
drug. "Smack" ?
(1) Flowers (2) Latex
(3) Roots (4) Leaves

Match the items given in Column I with those in
Column II and select the correct option given
below:
Column I Column II
a. Eutrophication i. UV-B radiation
b. Sanitary landfill ii. Deforestation
c. Snow blindness iii. Nutrient enrichment
d. Jhum cultivation iv. Waste disposal
a b c d
(1) ii i iii iv
(2) i iii iv ii
(3) iii iv i ii
(4) i ii iv iii

Which one of the following population interactions
is widely used in medical science for the production
of antibiotics ?
(1) Commensalism
(2) Mutualism
(3) Parasitism
(4) Amensalism

Which of the following events does not occur in
rough endoplasmic reticulum ?
(1) Protein folding
(2) Protein glycosylation
(3) Cleavage of signal peptide
(4) Phospholipid synthesis

Which of these statements is incorrect ?
(1) Enzymes of TCA cycle are present in
mitochondrial matrix.
(2) Glycolysis occurs in cytosol.
(3) Glycolysis operates as long as it is supplied with
NAD that can pick up hydrogen atoms.
(4) Oxidative phosphorylation takes place in outer
mitochondrial membrane.

Many ribosomes may associate with a single mRNA
to form multiple copies of a polypeptide
simultaneously. Such strings of ribosomes are
termed as
(1) Polysome
(2) Polyhedral bodies
(3) Plastidome
(4) Nucleosome

Select the incorrect match :
(1) Lampbrush - Diplotene bivalents
chromosomes
(2) Allosomes - Sex chromosomes
(3) Submetacentric - L-shaped chromososmes
chromosomes
(4) Polytene - Oocytes of amphibians
chromosomes

Nissl bodies are mainly composed of
(1) Proteins and lipids
(2) DNA and RNA
(3) Nucleic acids and SER
(4) Free ribosomes and RER