The term ''inbreeding depression'' is related to

Options

A. increased fertility and productivity
B. increased milk production
C. reduced fertility and productivity
D. reduced milk production.

Explanation

**Step-by-Step Solution:**

1. **Understanding Inbreeding**:
- Inbreeding refers to the mating of individuals that are closely related genetically. This can occur within a specific breed or population over several generations.

2. **Definition of a Breed**:
- A breed is a group of animals or organisms that share specific characteristics and can interbreed. This means they have similar genetic traits.

3. **Effects of Inbreeding**:
- Inbreeding can help in identifying and eliminating undesirable genes from a population. However, when inbreeding is continued over many generations, it can lead to negative effects.

4. **Inbreeding Depression**:
- Inbreeding depression is the phenomenon where the continued inbreeding results in a decrease in the biological fitness of a population. This includes reduced fertility and productivity.

5. **Analyzing the Options**:
- Option A: Increased fertility and productivity - Incorrect, as inbreeding depression leads to a decrease, not an increase.
- Option B: Increased milk production - Incorrect, as this is not a result of inbreeding depression.
- Option C: Reduced fertility and productivity - Correct, as this is the definition of inbreeding depression.
- Option D: Reduced milk production - Incorrect, as this is not specifically related to inbreeding depression.

6. **Conclusion**:
- The correct answer is Option C: Reduced fertility and productivity.

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