Question

Amniocentesis is

• A. Analysis of chemical composition of fluids of pregnant woman
• B. Withdrawal of allantoic fluid from pregnant women
• C. Culturing of cells and study of metaphase chromosomes from amniotic fluid to identify chromosomal abnormality
• D. An in vivo diagnosis

Answer 1

Answer: (C)

Culturing of cells and study of metaphase chromosomes from amniotic fluid to identify chromosomal abnormality

Amniocentesis (also referred to as amniotic fluid test or AFT) is a medical procedure used in prenatal diagnosis of chromosomal abnormalities and foetal infections, and also used for sex determination in which a small amount of amniotic fluid, which contains foetal tissues, is sampled from the amniotic sac surrounding a developing foetus, and the foetal DNA is examined for genetic abnormalities. Amniocentesis is usually done when a woman is between 14 and 16 weeks pregnant.

So, the correct answer is 'Culturing of cells and study of metaphase chromosomes from amniotic fluid to identify chromosomal abnormality'