Mongolism is

Options

A. Turner 's syndrome
B. Klinefetler 's syndrome
C. Down 's syndrome
D. Hypothalamic syndrome

Answer

**Step-by-Step Solution:**

1. **Understanding the Term "Mongolism":**
- Mongolism is an outdated term historically used to refer to Down's syndrome. It is important to recognize that this term is no longer considered appropriate or respectful.

2. **Identifying the Options:**
- The options provided are:
- Turner’s syndrome
- Klinefelter’s syndrome
- Down’s syndrome
- Hypothalamic syndrome

3. **Analyzing Each Syndrome:**
- **Turner’s Syndrome:**
- A genetic condition where a female is born with only one X chromosome (45, X).
- **Klinefelter’s Syndrome:**
- A genetic condition in males where there is an extra X chromosome (47, XXY).
- **Down’s Syndrome:**
- A genetic disorder caused by the presence of an extra chromosome 21 (47, XX or XY, +21). This is the most common form of Mongolism.
- **Hypothalamic Syndrome:**
- A disorder related to the hypothalamus, not a chromosomal condition.

4. **Conclusion:**
- Since Mongolism refers to Down's syndrome, the correct answer to the question is **Down's syndrome**.

5. **Final Answer:**
- Mongolism is Down's syndrome.

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