Select the incrorrect statement from the following

Options

A. Baldness is a sex limited triat
B. Linkage is an exception to the principle of independent assortment
C. Galactosemia is an inborn error of metabolism
D. Small population size results in random genetic drift in a popluation

Answer

To solve the question "Select the incorrect statement from the following," we will analyze each statement one by one to determine if any of them is incorrect.

### Step-by-Step Solution:

1. **Analyze the First Statement: "Baldness is a sex-limited trait."**
- **Explanation:** Baldness is indeed considered a sex-limited trait because it is expressed differently in males and females. It is more common in males and behaves as a recessive trait in females, appearing only when inherited in a duplex form. Therefore, this statement is **correct**.

2. **Analyze the Second Statement: "Linkage is an exception to the principle of independent assortment."**
- **Explanation:** According to Mendel's law of independent assortment, genes are inherited independently of one another. However, linked genes (genes located on the same chromosome) do not assort independently. Thus, linkage is indeed an exception to this principle. Therefore, this statement is **correct**.

3. **Analyze the Third Statement: "Galactosemia is an inborn error of metabolism."**
- **Explanation:** Galactosemia is a genetic disorder that affects the metabolism of galactose, making it an inborn error of metabolism. It is a hereditary condition present from birth. Therefore, this statement is **correct**.

4. **Analyze the Fourth Statement: "Small population size results in random genetic drift in a population."**
- **Explanation:** Random genetic drift occurs more significantly in small populations due to the limited number of individuals contributing to the gene pool. This can lead to phenomena such as the bottleneck effect and founder effect. Therefore, this statement is **correct**.

### Conclusion:
After analyzing all four statements, we find that all of them are correct. Therefore, there is no incorrect statement among the options provided.

### Final Answer:
None of the statements are incorrect.

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