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Solution


Q.

Which of the following statements are correct about Klinefelter’s Syndrome                                    [2023]
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 B and E only  
2 A and E only  
3 A and B only  
4 C and D only  

Ans.

(1)

Klinefelter’s syndrome is a genetic disorder caused due to the presence of an additional copy of X-chromosome resulting into a karyotype of 47, XXY. Such an individual has overall masculine development, however the feminine development (development of breast i.e., gynaecomastia) is also expressed. Such individuals are sterile.