Question

Klinefelter's syndrome has

• A. $44+XXY$
• B. $44+XO$
• C. $45+XY$
• D. $66+XXY$

Answer 1

The correct option is A $44+XXY$

Klinefelter syndrome is a sex chromosome disorder in boys and men that results from the presence of an extra X chromosome in cells.

Men have 44+XX chromosome normally, whereas male suffering from this above-mentioned syndrome will have 44+XXY chromosomes.

So, the correct answer is '44+XXY'.