Principles Of Inheritance And Variation Question 1
Question: Which of the following statements are correct about Klinefelter’s Syndrome?
A. This disorder was first described by Langdon Down (1866).
B. Such an individual has overall masculine development. However, the feminine development is also expressed.
C. The affected individual is short statured.
D. Physical, psychomotor and mental development is retarded.
E. Such individuals are sterile.
Choose the correct answer from the options given below:
(1) A and E only
(3) C and D only
(2) A and B only
(4) B and E only
Show Answer
Answer: (4) B and E only
Explaination-
Klinefelter’s Syndrome (male is born with an extra X chromosome (XXY instead of the usual XY)
A. It was not first described by Langdon Down. Down syndrome is a separate genetic disorder.
B. Such an individual has overall masculine development. However, the feminine development is also expressed
C. Short stature is not a characteristic feature of Klinefelter’s Syndrome.
D. Physical, psychomotor, and mental development may be affected to varying degrees, but it’s not a universal characteristic.
E. Such individuals are sterile.
