Which of the following genotype is present in Queen victoria as per her family pedigree chart?

Options

A. `X^(h)Y`
B. `X^(h)X^(h)`
C. `X^(H)X^(h)`
D. `X^(h)X^(O)`

Answer

To determine the genotype of Queen Victoria based on her family pedigree chart, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Hemophilia**:
- Hemophilia is an X-linked recessive disorder. This means that the gene responsible for hemophilia is located on the X chromosome, and the condition manifests in individuals who have a particular genotype.

2. **Identify Queen Victoria's Gender**:
- Queen Victoria is a female. Females have two X chromosomes (XX), while males have one X and one Y chromosome (XY).

3. **Determine the Carrier Status**:
- According to the information provided, Queen Victoria is a carrier of hemophilia. This means she has one normal X chromosome and one affected X chromosome.

4. **Represent the Genotype**:
- The normal allele for the hemophilia gene can be represented as X (uppercase), and the hemophilia allele (affected) is represented as X^h (lowercase h).
- Since she is a carrier, her genotype will be X^h X.

5. **Conclusion**:
- Therefore, the genotype of Queen Victoria is X^h X^h, indicating that she carries the hemophilia allele but does not express the disease herself.

### Final Answer:
- The genotype present in Queen Victoria, as per her family pedigree chart, is **X^h X^h**.