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NEET 2019
Exam
NEET
Year
2019
Subject
Zoology
Chapter
Principles of Inheritance and Variation

NEET 2019 · Zoology · Principles of Inheritance and Variation

In which genetic condition, each cell in the affected person, has...

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,XXY47, \mathrm{XXY}. Such individuals are sterile.
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