In amniocentesis, the following is examined

Options

A. Amino acids
B. Membrane
C. Skin cells
D. Sex organs

Answer

### Step-by-Step Solution:

1. **Understanding Amniocentesis**:
- Amniocentesis is a medical procedure used during pregnancy to obtain amniotic fluid, which surrounds the developing fetus. This fluid contains fetal cells and various substances that can provide important information about the fetus.

2. **Purpose of Amniocentesis**:
- The primary purpose of amniocentesis is to analyze the genetic material of the fetus. This can help in detecting chromosomal abnormalities, genetic disorders, and the sex of the fetus.

3. **Examination of Amniotic Fluid**:
- During the procedure, a needle is inserted through the abdomen into the uterus to collect a sample of amniotic fluid. The fluid is then examined for:
- Chromosomal patterns (to identify genetic disorders)
- Fetal sex determination (to find out if the fetus is male or female)
- Other potential abnormalities or conditions.

4. **Identifying the Correct Option**:
- The question provides multiple-choice options regarding what is examined in amniocentesis. Based on the explanation:
- Amino acids are not specifically examined.
- The membrane itself is not the focus of the test.
- Skin cells are not directly examined in this procedure.
- The sex organs of the fetus can be determined through the analysis of the amniotic fluid.

5. **Conclusion**:
- Therefore, the correct answer to the question "In amniocentesis, the following is examined" is the sex of the fetus, which corresponds to the option that states "sex organs are examined."