Final answer:
A Barr body is attached to the other X chromosome in the nucleus of female cells to equalize gene expression between males and females.
Step-by-step explanation:
The general location of a Barr body is C) attached to the other X chromosome.
A Barr body is an inactivated X chromosome that forms in the nucleus of female cells. It occurs as a result of X chromosome inactivation, which is a process that equalizes gene expression between males and females by silencing one of the X chromosomes in females. The inactive X chromosome condenses into a dense, heterochromatic mass known as a Barr body, which is usually found on the periphery of the nucleus, attached to the other X chromosome.