Certain genetic disorders show a higher proportion of males to be affected as compared to females that are affected . Such genetic disorders can arise due to

Options

A. Recessive character carried by Y chromosomes
B. Dominant character carried by Y chromosome
C. Dominant trait carried by X chromosome
D. Recessive trait carried by X chromosome

Answer

To solve the question regarding genetic disorders that show a higher proportion of males affected compared to females, we can break down the reasoning step by step.

### Step-by-Step Solution:

1. **Understanding Chromosomes**:
- Males have one X and one Y chromosome (XY), while females have two X chromosomes (XX). This difference is crucial in understanding how certain genetic disorders are inherited.

2. **X-Linked Disorders**:
- Genetic disorders can be linked to the X chromosome. If a disorder is X-linked recessive, it means that the gene causing the disorder is located on the X chromosome and requires two copies of the mutated gene for females (XX) to express the disorder, while males (XY) only need one copy (since they have only one X chromosome).

3. **Higher Prevalence in Males**:
- Because males have only one X chromosome, if they inherit the X chromosome with the recessive disorder, they will express the disorder. In contrast, females would need to inherit the mutated gene on both of their X chromosomes to express the disorder, making it less common in females.

4. **Conclusion**:
- Therefore, genetic disorders that show a higher proportion of males affected compared to females are typically due to recessive traits carried on the X chromosome. This leads us to conclude that the correct answer is:
- **Option A: Recessive character carried by the X chromosome**.