Exams › NEET › Biology

Klinefelter’s syndrome is a chromosomal condition in boys and men that can affect physical and intellectual development. It is caused due to presence of an additional copy of X-chromosome resulting into 44 + XXY type chromosome complement. Adult with this syndrome may have primary hypogonadism (decreased testosterone production), small or underdeveloped testes, enlarged breast, tall stature etc.

1. Turner’s syndrome
2. Down’s syndrome
3. Klinefelter’s syndrome
4. Sickle cell anaemia

Correct answer: Klinefelter’s syndrome

Solution

The condition described is caused by an extra X chromosome in a male, giving an XXY complement. Its classic features include primary hypogonadism, small testes, tall stature, and breast enlargement, which identify Klinefelter’s syndrome.

Related NEET Biology questions

• Pea plants were more suitable than cattle for Mendel's experiment because
• Identify the wrong statement about meiosis.
• Which condition of zygote cell will lead to birth of a normal human female child
• A human zygote has
• DNA in the offsprings is contributed by
• A common test to find the genotype of a hybrid is by

⚔️ Practice NEET Biology free + battle 1v1 →