A Barr body
A)is an inactivated X chromosome
B)cannot be stained
C)is transcribed and translated
D)is seen in males
E)is only found in humans

Question

Quizplus · Accepted Answer

A Barr body is an inactivated X chromosome that appears as a condensed, sex chromatin mass in the nucleus of female mammals. It is the result of X chromosome inactivation, a process that occurs early in female embryonic development to maintain the balance of gene expression between males (XY) and females (XX). Barr bodies are visible under a microscope and can be used to determine the sex of an individual's cells.

A Barr Body