Correct Answer:- Option-C
Question67:-Which of the following statements are true with regard to inbreeding 7
i) Frequency of homozygotes increases at the expense of heterozygotes
ii) Frequency of homozygotes increases but the frequency of heterozygotes remains the same
iii) New favourable genes are created as a result of inbreeding
iv) Between line/group phenotypic variation increases as a result of inbreeding
A:-(i), (ii)

D:-(i), (iv)
Correct Answer:- Option-D
Question68:-Breeding policy adapted for genetic improvement of Sahiwal cattle, Non descriptive buffaloes and Nellore
sheep was
A:-Upgrading, crossbreeding, selective breeding
B:-Selective breeding, upgrading, selective breeding
C:-Cross breeding, upgrading and selective breeding
D:-Cross breeding, top crossing, upgrading
Correct Answer:- Option-B
Question69:-Identify the correctly matched pair.
i) Hissardale - Magra x Merino
ii) Bhadwari - Copper colored coat
iii) Gir- Swaichal
iv) Amrit Mahal - Dual purpose
A:-(i), (ii)
, (iii)
ii), (iv)
D:-(iii), (iv)
Correct Answer:- Option-A
Question70:-Number of linkage groups in cattle and pigs are
A:-60, 38
B:-60,54
C:-30, 27
D:-30, 19
Correct Answer:- Option-D
Question71:-Which of the following protein is involved in defeminization of hypothalamus 7
A:-Alpha-fetoprotein
B:-Glycoprotein
C:-Sialoprotein
D:-Sulfoprotein
Correct Answer:- Option-A
Question72:-Enzymes govern degradation of the ovarian epithelium and follicle rupture during ovulation are
i) Metalloproteinases
ii) Plasminogen activators
iii) Heparinase

iv) Kallikreins
A:-(i), (ii)
B:-(i), (ii), (iii) and (iv)
C:-(i), (ii) and (iii)
D:-(i), (ii) and (iv)

Correct Answer:- Option-B
Question73:-Primary inhibitors of meiotic resumption in the oocyte is/are
A:-Cyclic AMP
B:-GMP
C:-Both
D:-None
Correct Answer:- Option-C
Question74:-A single recessive autosomal gene with incomplete penetration in cows leads to
A:-Hypoplasia of ovaries
B:-Freemartin
C:-Cystic ovaries
D:-Hermaphrodite