Go through the following statements regarding inbreeding and select the incorrect ones .
(i) The inbreeding strategies allow the desirable qualities of two different breeds to be combined .
(ii) It increases homozygosity .
(iii) It also helps in elimination of less desirable genes .
(iv) Continued inbreeding increases fertility and productivity .

Options

A. (i) and (ii)
B. (ii) and (iii)
C. (iii) and (iv)
D. (i) and (iv)

Answer

To solve the question regarding the statements about inbreeding, we will analyze each statement one by one and determine which ones are incorrect.

### Step-by-Step Solution:

1. **Understanding Inbreeding**:
- Inbreeding refers to the mating of closely related individuals within the same breed. This process can lead to the establishment of pure lines over successive generations.

2. **Analyzing Statement (i)**:
- **Statement**: "The inbreeding strategies allow the desirable qualities of two different breeds to be combined."
- **Analysis**: This statement is incorrect because inbreeding involves individuals from the same breed, not different breeds. Therefore, it cannot combine qualities from two different breeds.

3. **Analyzing Statement (ii)**:
- **Statement**: "It increases homozygosity."
- **Analysis**: This statement is correct. Inbreeding does lead to increased homozygosity, as it promotes the mating of similar genetic backgrounds, resulting in offspring that are more genetically uniform.

4. **Analyzing Statement (iii)**:
- **Statement**: "It also helps in elimination of less desirable genes."
- **Analysis**: This statement is correct. Through selection during the inbreeding process, less desirable traits can be identified and eliminated, improving the overall quality of the progeny.

5. **Analyzing Statement (iv)**:
- **Statement**: "Continued inbreeding increases fertility and productivity."
- **Analysis**: This statement is incorrect. Continued inbreeding often leads to inbreeding depression, which decreases fertility and productivity, contrary to what the statement suggests.

### Conclusion:
The incorrect statements regarding inbreeding are:
- (i) The inbreeding strategies allow the desirable qualities of two different breeds to be combined.
- (iv) Continued inbreeding increases fertility and productivity.

### Final Answer:
The incorrect statements are (i) and (iv).

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