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Mating of closely related individuals wi...

Mating of closely related individuals within the same breed for 4-6 generation is

A

outbreeding

B

interspecific breeding

C

inbreeding

D

cross breeding

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**Step-by-Step Solution:** 1. **Understanding the Question**: The question asks about the mating of closely related individuals within the same breed for 4-6 generations. 2. **Defining Breeding Types**: Breeding can be classified into two main types: inbreeding and outbreeding. - Inbreeding refers to mating individuals within the same breed. - Outbreeding refers to mating individuals from different breeds or species. 3. **Identifying Inbreeding**: Since the question specifies "closely related individuals within the same breed," this indicates that we are dealing with inbreeding. 4. **Explaining Inbreeding**: Inbreeding involves mating individuals that are closely related over several generations (in this case, 4-6 generations). This can lead to the production of pureline animals, which are homozygous for certain traits. 5. **Consequences of Inbreeding**: While inbreeding can enhance desirable traits, it can also lead to inbreeding depression, which is a reduction in fertility and productivity due to the accumulation of deleterious alleles. 6. **Conclusion**: Therefore, the answer to the question is **inbreeding**. ---
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