Question

Development of feminine characters and no spermatogenesis are characteristic feature of people with __________.

• A. Down's syndrome
• B. Turner's syndrome
• C. Klinefelter's syndrome
• D. Huntington's disease

Hint:

Think of the chromosomal disorder in which a male has an extra X chromosome and is sterile.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept
Klinefelter's syndrome has the karyotype 47, XXY. The person is a male but carries an extra X chromosome.

Step 2: Effect of the extra X
The extra X causes feminine traits such as breast development (gynaecomastia) and a feminine body build.

Step 3: Effect on fertility
The testes remain small and do not produce sperm, so spermatogenesis fails and the person is sterile.

Final Answer:
These features are characteristic of Klinefelter's syndrome. \[ \boxed{\text{(C) }\text{Klinefelter's syndrome}} \]