Name the fluid from which foetal cells are obtained for chromosomal analysis.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the name of the fluid from which fetal cells are obtained for chromosomal analysis. This indicates that we need to identify a specific fluid associated with fetal development.

2. **Identifying the Relevant Fluid**: In human pregnancy, the developing fetus is surrounded by a protective fluid. This fluid is crucial for the fetus's development and health.

3. **Naming the Fluid**: The fluid that surrounds the fetus is called **amniotic fluid**. This fluid contains fetal cells that can be isolated for further analysis.

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