Cross Breeding

Q.

Read the following statements (A-D) and select the option which correctly identifies true (T) and false (F) statements.

A. Out-breeding is the practice of breeding related animals.
B. Out-breeding is of three types which include out-crossing, cross-breeding and inbreeding.
C. Out-crossing is the practice of mating of animals within the same breed with no common ancestor up to 2-3 generations.
D. Out-crossing is the best breeding method for animals that are below average in productivity (milk production) and growth rate (meat production).

1. A – F, B – F, C – F, D - T
2. A – T, B – F, C – F, D - T
3. A – F, B –T, C – F, D - T
4. A – F, B – F, C –T, D - T

Q. Match column I with column II and choose the correct option from given below.

Column I

Column II

A	Cross- breeding	1	Mule, a hybrid produced from male donkey and female horse
B	Outcross	2	Hisardale breed of sheep
C	Interspecific hybridization	3	Practice of breeding unrelated animals
D	Out-breeding	4	Practice of mating of animals within the same breed

1. A - 2, B - 1, C - 4 and D - 3
2. A - 2, B - 4, C - 1 and D - 3
3. A - 1, B - 4, C - 3 and D - 2
4. A - 2, B - 3, C - 3 and D - 1

Q. Exotic breeds are_____________

1. Used for cross breeding
2. allowed to multiply and replace local breeds
   
3. cheaper
   
4. resistant to local pests and pathogens.

Q. Exotic breeds are:

1. Used for cross breeding
2. allowed to multiply and replace local breeds
   
3. cheaper
   
4. resistant to local pests and pathogens.

Q. Hisardale is ____(A)_____and is produced by crossing___(B)_____.

1. (A)-a crossbreed, (B)-Bikaneri rams and Marino ewes
2. (A)- an interspecific hybrid, (B)- male horse and female donkey
3. (A)- a crossbreed, (B)- Bikaneri ewes and Marino rams
4. (A)-an interspecific hybrid, (B)-male donkey and female horse

Q. Hisardale is a new breed of sheep developed in Punjab by crossing

1. Merino ram and Bikaneri ewe
2. Assel ram and white leghorn ewe
3. Cochin ram and Ghagus ewe
4. Rhode Island ram and White Leghorn ewe

Q. The breeding carried out between animal of different breeds is called _________________.

1. Out-crossing
2. Cross-breeding
3. Both (a) and (b)
4. Inbreeding

Q.

Q. Choose the word or phrase which is nearest in meaning to the given word:

1. Pedigreed
2. Hackneyed
3. Unusual
4. Crossbreed

Q. Name the new variety formed through the mutation.

1. Ancon sheep
2. Navel orange
3. Polled cattle
4. All of the above