Slideshows Images Quizzes

Copyright © 2018 by RxList Inc. RxList does not provide medical advice, diagnosis or treatment. See additional information.

Definition of Facultative heterochromatin

Facultative heterochromatin: Chromosome material that can be either heterochromatin or euchromatin.

The inactive X chromosome is made up of facultative heterochromatin. When a woman transmits that X chromosome to a son, the chromosome reverts to the euchromatic state and to genetic activity.

QUESTION

What causes tooth decay? See Answer
Reviewed on 12/21/2018

Health Solutions From Our Sponsors