The correct answer is 4) B and E only. Such individuals are sterile and has overall masculine development. However, the feminine development is also expressed.
Klinefelter’s Syndrome is a genetic disorder that occurs in males, typically characterized by the presence of an extra X chromosome (XXY) instead of the usual XY chromosome pattern.
Let’s go through each statement:
A. This disorder was first described by Langdon Down (1866).
This statement is incorrect. Klinefelter’s Syndrome was first described by Harry Klinefelter and his colleagues in 1942, not Langdon Down.
B. Such an individual has overall masculine development. However, the feminine development is also expressed.
This statement is generally correct. Individuals with Klinefelter’s Syndrome typically have male physical characteristics but may also show some feminine traits or features, such as gynecomastia (enlarged breast tissue) and reduced facial and body hair.
C. The affected individual is short statured.
This statement is incorrect. Individuals with Klinefelter’s Syndrome often have normal to slightly taller-than-average stature, but they are not typically short.
D. Physical, psychomotor, and mental development is retarded.
This statement is not entirely accurate. People with Klinefelter’s Syndrome may have some developmental and learning challenges, but they are not necessarily “retarded.” The extent of these challenges can vary widely among individuals.
E. Such individuals are sterile.
This statement is generally correct. One of the most common characteristics of Klinefelter’s Syndrome is infertility. Individuals with this condition typically have reduced or absent sperm production, leading to infertility.