Select the incorrect statement.

Options

A. inbreeding helps in accumulation of superior genes and elimination of undersirable genes.
B. Inbreeding increases homozygosity
C. Inbreeding is essential to evolve purelines, in any
D. Inbreeding selects harmful recessive gene that reduce fertility and productivity.

Answer

**Step-by-Step Solution:**

1. **Understanding Inbreeding:**
- Inbreeding refers to the mating of closely related organisms. This process can lead to the accumulation of desirable traits and the elimination of undesirable traits.

2. **Analyzing the Statements:**
- **Statement 1:** "Inbreeding helps in accumulation of superior genes and elimination of undesirable genes."
- This statement is **correct**. Inbreeding promotes the expression of desirable traits while reducing the presence of undesirable genes.

- **Statement 2:** "Inbreeding increases homozygosity."
- This statement is also **correct**. Since closely related organisms share similar genetic material, inbreeding leads to an increase in homozygosity (having identical alleles for a trait).

- **Statement 3:** "Inbreeding is essential to evolve pure lines."
- This statement is **correct** as well. Inbreeding is important for developing pure lines because it ensures that offspring have uniform traits.

- **Statement 4:** "Inbreeding selects harmful recessive genes that reduce fertility and productivity."
- This statement is **incorrect**. Inbreeding does not select harmful recessive genes; instead, it tends to enhance the expression of superior genes, which can improve fertility and productivity.

3. **Conclusion:**
- The incorrect statement among the options provided is the fourth statement: "Inbreeding selects harmful recessive genes that reduce fertility and productivity."

**Final Answer:**
The incorrect statement is: "Inbreeding selects harmful recessive genes that reduce fertility and productivity."

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