1. Tardigrade
  2. Question
  3. Biology
  4. Number of Barr bodies in XXXX female is

Q. Number of Barr bodies in XXXX female is

 3975  229 AIPMTAIPMT 2001Principles of Inheritance and Variation Report Error

Solution:

Barr body is a mass of condensed sex chromatin in the nuclei of normal female somatic cells due to inactive X chromosome. Thus Barr body represents the inactivated X-chromosome. Whenever the number of X-chromosomes is two or more than two, the number of barr bodies is one less than the number of X-chromosomes. Therefore, the number of barr bodies in XXXX female is three.