A disease which is inherited as an autosomal dominant condition

Options

A. Haemophilia
B. Huntinghton's chorea
C. Colour blindness
D. Cri du chat .

Answer

### Step-by-Step Solution:

1. **Understanding Autosomal Dominant Inheritance**:
- Autosomal dominant conditions are genetic disorders caused by mutations in genes located on the autosomes (non-sex chromosomes).
- In this type of inheritance, only one copy of the mutated gene (from either parent) is sufficient to cause the disease.

2. **Identifying the Options**:
- The question asks for a disease that is inherited as an autosomal dominant condition.
- We need to evaluate the diseases mentioned in the context of their inheritance patterns.

3. **Evaluating the Given Diseases**:
- **Hemophilia**: This is an X-linked recessive disorder, not autosomal dominant.
- **Color Blindness**: This is also an X-linked recessive disorder, not autosomal dominant.
- **Cri du Chat Syndrome**: This condition is due to a deletion on chromosome 5 and is not classified as autosomal dominant.
- **Huntington's Disease (Chorea)**: This is an autosomal dominant disorder. It is characterized by progressive motor dysfunction, including involuntary movements.

4. **Conclusion**:
- Among the diseases listed, **Huntington's Disease** is the one that is inherited as an autosomal dominant condition.

### Final Answer:
The disease which is inherited as an autosomal dominant condition is **Huntington's Disease**.