Amniocentesis is used for determining :-

Options

A. Heart disease
B. Brain disease
C. The hereditary disease of the embryo
D. All of the above

Answer

**Step-by-Step Solution:**

1. **Understanding Amniocentesis**:
- Amniocentesis is a medical procedure used during pregnancy to obtain amniotic fluid, which contains fetal cells and various substances. This fluid surrounds the fetus in the womb.

2. **Purpose of Amniocentesis**:
- The primary purpose of amniocentesis is to analyze the genetic material of the fetus. It helps in diagnosing certain genetic and chromosomal disorders.

3. **Identifying the Options**:
- The question provides four options:
1. Heart disease
2. Brain disease
3. Hereditary disease of the embryo
4. All of the above

4. **Analyzing Each Option**:
- **Heart Disease**: While some heart conditions can be detected through imaging techniques like ultrasound, they are not specifically diagnosed through amniocentesis.
- **Brain Disease**: Similar to heart disease, brain abnormalities are typically assessed through ultrasound rather than amniocentesis.
- **Hereditary Disease of the Embryo**: Amniocentesis is specifically used to detect genetic disorders, including hereditary diseases like Down syndrome, which is a chromosomal disorder.

5. **Conclusion**:
- Based on the analysis, the most accurate answer is that amniocentesis is primarily used for determining hereditary diseases of the embryo. Therefore, the correct answer is option 3.

**Final Answer**: The correct answer is option 3: Hereditary disease of the embryo.

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