Question

A pregnant woman who has done amniocentesis test finds an extra Barr body in her embryo. The syndrome which is likely to be associated with the embryo is ________________.

• A. Down syndrome
• B. Patau syndrome
• C. Edward syndrome
• D. Klinefelter syndrome

Answer 1

The correct option is D Klinefelter syndrome

Amniocentesis is the process of detection of chromosomal aberrations and genetic disorders in the foetus by drawing sample of amniotic fluid. Barr body is an extra inactive X chromosome and its presence is indicative of Klinefelter’s syndrome. This may be detected at foetal stage through amniocentesis.