- Which one of the following refers to allen’s rule?
(a) an organism can move from a stressful habitat to a
more hospitable area and return when the stressful
period is over.
(b) If the stressful conditions are localized or remain only
for a short duration, an organism either migrates or
suspends itself.
(c) Low atmospheric pressure in higher altitudes results
in altitude sickness.
(d) mammals from colder climates have shorter ears
and limbs to minimise heat loss.
- match column-I (crop) with column-II (corresponding
insect pests resistant variety) and select the correct
option from the codes given below.
Column-I Column-II
a. Flat bean (i) Pusa Gaurav
B. Okra (Bhindi) (ii) Pusa Sem-2
c. Brassica (iii) Pusa Sawani
(a) a-(ii), B-(i), c-(iii) (b) a-(ii), B-(iii), c-(i)
(c) a-(iii), B-(ii), c-(i) (d) a-(i), B-(iii), c-(ii)
- Baculoviruses (Nucleopolyhedrovirus) do not show
(a) host specificity
(b) narrow spectrum applications
(c) effects on non-target pathogens
(d) utility in IPm programme.
- match the following list of bioactive substances and
their roles and select the correct option from the codes
given.
Bioactive Substance Role
a. Statin (i) removal of oil stains
B. cyclosporin a (ii) removal of clots from blood
vessels
c. Streptokinase (iii) Lowering of blood
cholesterol
D. Lipase (iv) Immuno-suppressive agent
(a) a-(ii), B-(iii), c-(i), D-(iv)
(b) a-(iv), B-(ii), c-(i), D-(iii)
(c) a-(iv), B-(i), c-(ii), D-(iii)
(d) a-(iii), B-(iv), c-(ii), D-(i)
- Given below is the flowchart of sewage treatment.
Identify a, B, c and D and select the correct option.
(a) a-mechanical agitation; B-Increased BOD;
c-activated sludge; D-aerobic sludge digesters
(b) a-mechanical agitation; B-reduced BOD;
c-activated sludge; D-anaerobic sludge digesters
(c) a-microbial digestion; B-activated sludge;
c-reduced BOD; D-anaerobic sludge digesters
(d) a-microbial digestion; B-mechanical agitation;
c-reduced BOD; D-aerobic sludge digesters
- Study carefully the following stages of life cycle of
malarial parasite Plasmodium. arrange these stages in
the correct sequence and select the correct option.
- Sporozoites leave the blood stream and enter the
liver cells of man.
- Sporozoites present in the salivary glands of female
Anopheles mosquito are injected into the blood
stream of man.
- The parasite reproduces asexually in rBcs, resulting
in bursting of rBcs and causing the cycles of fever;
released parasites infect new rBcs.
- The parasite reproduces asexually in liver cells,
ultimately causing the rupturing of cells and enters
the blood.
- Two types of gametocytes i.e., microgametocytes
and macrogametocytes develop in the rBcs.
- Female Anopheles mosquito takes up the
gametocytes with blood meal of an infected
person.
- mature infective stage of the parasite i.e., sporozoites
escape from intestine and migrate to the mosquito’s
salivary glands.
- Fertilisation and developmental stages of the
parasite take place in mosquito’s stomach.
(a) 2 → 1 → 4 → 3 → 5 → 6 → 8 → 7
(b) 2 → 4 → 1 → 3 → 5 → 6 → 7 → 8
(c) 1 → 2 → 4 → 3 → 5 → 6 → 8 → 7
(d) 6 → 8 → 7 → 4 → 5 → 2 → 3 → 1
- In which one of the following options the two examples
are correctly matched with their particular type of
immunity?
Examples Type of immunity
(a) Polymorphonuclear leucocytes
and monocytes
cellular barriers
(b) anti-tetanus and
anti-snake bite injections
active immunity
(c) Saliva in mouth and tears in
eyes
Physical barriers
(d) mucous coating of epithelium
lining the urinogenital tract
and the hcI in stomach
Physiological barriers
