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NEET2019ZoologyPrinciples of Inheritance and VariationActual

In which genetic condition, each cell in the affected person, has three sex chromosomes XXY?

Options

  1. AThalassemia
  2. BKlinefelter's syndrome
  3. CPhenylketonuria
  4. DTurner's syndrome

Correct answer

B. Klinefelter's syndrome

Step-by-step solution

Klinefelter's syndrome is a genetic condition in which each cell in the affected person has three sex chromosomes XXY. It is caused due to the presence of an additional copy of X-chromosome resulting into a karyotype of 47, XXY . Such individuals are sterile.

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