Epicanthus is symptom of

Options

A. Haploidy
B. Turner's syndrome
C. Down's syndrome
D. Hetreoploidy

Answer

### Step-by-Step Solution:

1. **Understanding Epicanthus**:
- Epicanthus, also known as the epicanthic fold, is a skin fold of the upper eyelid that covers the inner corner of the eye. It is a physical trait that can be influenced by genetic factors and ancestry.

2. **Identifying Conditions Associated with Epicanthus**:
- Various medical conditions can lead to the prominence of epicanthus. These include genetic disorders and can also be influenced by age and other underlying diseases.

3. **Analyzing the Options**:
- The options given are:
- A) Haploidy
- B) Turner Syndrome
- C) Down Syndrome
- D) Heteroploidy

4. **Evaluating Each Option**:
- **Haploidy**: This condition refers to having a single set of chromosomes. It is not associated with epicanthus, so this option is incorrect.
- **Turner Syndrome**: This genetic condition occurs when there is a missing X chromosome in females, leading to a total of 45 chromosomes. Some individuals with Turner Syndrome may exhibit epicanthus, but it is not as common.
- **Down Syndrome**: This is a genetic disorder caused by the presence of an extra chromosome 21 (trisomy 21). A significant number of individuals with Down Syndrome (approximately 60%) exhibit epicanthus as a prominent feature.
- **Heteroploidy**: This term refers to variations in chromosome number, which can include various syndromes. It is too broad and does not specifically indicate a condition associated with epicanthus.

5. **Conclusion**:
- Given the analysis, the most appropriate answer is **C) Down Syndrome**, as it is the condition most commonly associated with the presence of epicanthus.