Multiple choice

Klinfelter’s syndrome is due to

  1. mutation of gene on sex chromosome

  2. trisomy of specific autosome

  3. non-disjunction of sex chromosome during oogenesis

  4. deletion of segment in x-chromosome

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C Correct answer
Explanation

 Klinfelter’s syndrome is due to non-disjunction of sex chromosome during oogenesis,also known as 47,XXY or XXY.