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JIPMER2012ZoologyPrinciples of Inheritance and Variation

Which has an additional X-chromosome?

Options

  1. ATurner's syndrome
  2. BKlinefelter's syndrome
  3. CSuper female
  4. DDown's syndrome

Correct answer

B. Klinefelter's syndrome

Step-by-step solution

Klinefelter's syndrome is caused by one or more extra X-chromosome (i.e., XXY, XXXY). The man with such a syndrome is sterile, has small testes, long legs and feminine characters like breasts.

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