Select the incorrect statement

Options

A. Inbreeding increases homozygosity
B. Inbreeding is essential to evolve purelines in any animals
C. Inbreeding sekects harmful recessive genes that reduce fertility and productivity
D. Inbreeding helps in accumulation of superior genes and elimination of undesirable genes.

Answer

**Step-by-Step Solution:**

1. **Understanding Inbreeding:**
- Inbreeding refers to the mating of closely related individuals. This practice is common in agriculture and animal breeding to maintain or enhance specific traits.

2. **Evaluating Statement 1:**
- The first statement claims that "inbreeding increases homozygosity."
- Since inbreeding involves mating individuals with similar genetic backgrounds, it indeed increases the proportion of homozygous individuals in the population.
- **Conclusion:** This statement is correct.

3. **Evaluating Statement 2:**
- The second statement states that "inbreeding is essential to evolve pure lines in any animals."
- Inbreeding is used to produce pure lines by ensuring that offspring inherit similar traits from their parents.
- **Conclusion:** This statement is also correct.

4. **Evaluating Statement 3:**
- The third statement claims that "inbreeding selects harmful recessive genes that reduce fertility and productivity."
- Inbreeding does not select harmful recessive genes; instead, it can lead to the expression of these genes, which may reduce fertility and productivity. However, the focus is on the accumulation of desirable traits.
- **Conclusion:** This statement is incorrect.

5. **Evaluating Statement 4:**
- The fourth statement says that "inbreeding helps in accumulation of superior genes and elimination of undesirable genes."
- Inbreeding can enhance desirable traits and help eliminate undesirable traits over generations.
- **Conclusion:** This statement is correct.

6. **Final Conclusion:**
- Among the four statements, the third statement is the only incorrect one. Thus, the answer to the question is that the incorrect statement is option 3.

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