Question

Outbreeding is an important strategy of animal husbandry because it?

• A. Is useful in producing purelines of animals.
• B. Helps in the accumulation of superior genes.
• C. Exposes harmful recessive genes that are eliminated by selection.
• D. Is useful in overcoming inbreeding depression.

Answer 1

The correct option is D

Is useful in overcoming inbreeding depression.

The correct option is D:

Explanation for Correct option:

1. Mating of more closely related individuals within the same breed over 4-6 generations is referred to as inbreeding.
2. Superior males and females of the same breed are identified and mated in pairs as part of the breeding strategy.
3. It boosts homozygozity. Continued inbreeding, on the other hand, causes inbreeding depression, which decreases fertility and even production.
4. To solve this difficulty, selected breeding animals should be mated with superior animals of the same breed who are unrelated.
5. Outbreeding is the term for this approach.

Explanation for Incorrect options:
Option A:

1. Purelines are generated in animal husbandry through recurrent inbreeding or by mating male and female animals of the same breed for 4-5 generations.
2. Inbreeding raises homozygosity, which results in pure lines.
3. As a result, in animal husbandry, pure lineages are produced by inbreeding.

Option B:

1. Inbreeding helps the accumulation of better genes while also removing unwanted genes.
2. It will boost positive characteristics and promote fertility by removing dangerous and undesirable genes.

Option C:

1. Homozygozity rises as a result of inbreeding.
2. It reveals detrimental recessive genes that have been selected out.

Final answer: Outbreeding is an important strategy of animal husbandry because it is useful in overcoming inbreeding depression.