Question

Syndrome in which somatic cells contain three sex chromosomes XXY, is?

• A. Turner's syndrome
• B. Down's syndrome
• C. Klinefelter's syndrome
• D. Super female

Answer 1

The correct option is C Klinefelter's syndrome

Klinefelter syndrome is a sex chromosome disorder in boys and men that results from the presence of an extra X chromosome in cells. People typically have 46 chromosomes in each cell, two of which are the sex chromosomes. Females have two X chromosomes (46, XX), and males have one X and one Y chromosome (46, XY). Males have an X and a Y (XY). But in rare cases, a male is born with an extra X chromosome (XXY).

So, the correct answer is 'Klinefelter's syndrome'.