What is not true of hemophilia?

Options

A. Bleeders disease
B. Royal disease
C. X-linked disorder
D. Y-linked disrder

Answer

### Step-by-Step Solution:

1. **Understanding Hemophilia**: Hemophilia is a genetic disorder that affects the blood's ability to clot. This means that individuals with hemophilia can experience excessive bleeding from injuries or spontaneous bleeding without any apparent cause.

2. **Identifying True Statements about Hemophilia**:
- **Bleeder's Disease**: Hemophilia is often referred to as "Bleeder's disease" because of the bleeding issues associated with it. This statement is true.
- **Royal Disease**: Hemophilia is also known as "Royal disease" due to its historical connection with royal families, particularly Queen Victoria of England, who passed the gene to her descendants. This statement is true.
- **X-linked Disorder**: Hemophilia is inherited in an X-linked recessive pattern, meaning the gene responsible for hemophilia is located on the X chromosome. This statement is true.

3. **Identifying the False Statement**:
- **Y-linked Disorder**: Hemophilia is not a Y-linked disorder. Y-linked disorders are passed down through the Y chromosome, which is not the case for hemophilia. This statement is false.

4. **Conclusion**: The statement that is not true of hemophilia is that it is a Y-linked disorder.

### Final Answer:
The option that is not true of hemophilia is **Y-linked disorder**.

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