Chapter 3

NCERT
Class 12
Biology
Solutions
What is amniocentesis and why is it done?

Question:

What is amniocentesis and why is it done?

Answer:

Amniocentesis is a prenatal medical test where a small sample of amniotic fluid is taken from the womb to check the baby’s health. This fluid contains fetal cells and chemicals that reveal genetic or chromosomal disorders, infections, and other conditions. Essentially, it’s a way to get detailed information about the baby before birth.

Key Points to Know

  • Purpose: Detect genetic disorders, chromosomal abnormalities, and certain infections.
  • How it helps: Provides more definitive results than routine blood tests or ultrasounds.
  • Who might need it: Women over 35, high-risk pregnancies, or abnormal prenatal screening results.