Select the odd one out w.r.t haemophilia

Options

A. X-linked dominant disorder
B. Bleeder's disease
C. Criss-cross inheritance
D. X-linked recessive disorder

Answer

To solve the question "Select the odd one out with respect to hemophilia," we need to analyze the provided options in relation to hemophilia.

### Step-by-Step Solution:

1. **Understand Hemophilia**: Hemophilia is a genetic disorder that affects the blood's ability to clot. It is often referred to as "Bleeder's disease" because individuals with this condition can experience excessive bleeding.

2. **Identify the Type of Disorder**: Hemophilia is classified as an X-linked recessive disorder. This means that the gene responsible for hemophilia is located on the X chromosome, and the disorder manifests primarily in males, while females can be carriers.

3. **Examine the Options**:
- **Option 1: X-linked dominant disorder** - This is incorrect for hemophilia, as hemophilia is X-linked recessive, not dominant.
- **Option 2: Bleeder's disease** - This is a correct term for hemophilia, as it describes the condition accurately.
- **Option 3: Crisscross inheritance** - This is also correct, as hemophilia shows crisscross inheritance, where the trait is passed from mother to son and from father to daughter.
- **Option 4: X-linked recessive disorder** - This is correct since hemophilia is indeed an X-linked recessive disorder.

4. **Identify the Odd One Out**: Based on the analysis, the odd one out is **Option 1: X-linked dominant disorder**, as it does not correctly describe hemophilia, which is an X-linked recessive disorder.

### Final Answer:
The odd one out with respect to hemophilia is **Option 1: X-linked dominant disorder**.

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