Department of Animal Genetics and Breeding
College of Veterinary Science and Animal Husbandry
Sardarkrushinagar Dantiwad Agricultural University,
Sardarkrushinagar – 385506
Semester Quiz Examination (Theory)
Total Marks: 17.5
Q - 1.
Fill in the blanks
(20 X 0.50 = 10.0)
1. The genetic assortative mating is known as ___________________.
2. The loss of Heterosis in second generation is due to _________________.
3. The coancestry of any two individuals is equal to the __________________
of their progeny.
4. The gene and genotypic frequencies remains constant through a mating known as
___________________.
5. The relationship between first cousin is _____________ %.
6. _______________ buffalo is a cross of Surti and Murrah breed.
7. ________________increases when proportion of individuals saved decreases.
8. Repeatability ranges from __________ to __________.
9. DIPA means ________________________________________________.
10. The animal appeared in sire and dam pedigree is called as ________________.
11. _______________ is crossing of all genotypes among themselves.
12. ________________ is the breed of choice for improving milk production in
buffaloes in India.
13. The Karanfries breed was developed at ________________.
14. In herd progeny testing _________ females are mated by 10 males ate random.
15. A bull is declared as a proven bull if his female progeny’s milk production
____________ % higher than the population average.
16. BLUP means ______________________________________________.
17. Osborn index is a combination of individual cum _______________ selection.
18. ________________ is the ratio selection differential and phenotypic standard
deviation.
Q – 4.
State whether the following statements are True or False
(15 X 0.5 = 7.5)
Answers
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Grading up is for genetic improvement of a known superior breed.
Inbreeding reduces genetic variation.
Two breed rotational crossing is also known as Criss crossing.
Inbreeding increases homozygosity there by increases gene frequency of
desirable gene.
Inbreeding create new gene that is lethal.
Crossbreeding reduces genetic variation.
Maximum heterosis benefits can be from outcrossing than crossbreeding.
The sire ranking changes in different countries due to the presence of non-
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genetic effects.
A final progeny test of a bull require information on a minimum of 5-6
progenies.
Frieswal cattle is a synthetic breed.
Red Kandhari cattle breed belongs to Madhya Pradesh.
Operation Flood scheme for milk started in NDRI, Karnal.
The Dwarf breed of Andhra Pradesh is Vechur.
CSWRI is located at Izzatnagar.
In Sunandini cattle, the exotic breed used for crossbreeding is Brown Swiss.