Question

The syndrome in humans in which an individual's somatic cells contain the three sex chromosomes XXY is called:

• A. Klinfelter's syndrome
• B. Turner's syndrome
• C. Down's syndrome
• D. Superfemale syndrome

Answer 1

The correct option is A

Klinfelter's syndrome

The correct option is A:

Explanation of the correct option:

1. Klinefelter syndrome is expressed as 47, XXY.
2. It is a syndrome where a male has an additional copy of the X chromosome.

Explanation of the incorrect options:

Option B:

Turner's syndrome is a condition affecting females due to partially or completely missing sex chromosomes.

Option C:

Downs syndrome is due to an extra chromosome 21 also known as trisomy of chromosome 21.

Option D:

Superfemale syndrome includes a range of physical, psychological, and interpersonal stress symptoms experienced by a woman.

Final answer: The syndrome in humans in which an individual's somatic cells contain the three sex chromosomes XXY is called Klinefelter's syndrome.