Which of the Following is a Mechanism of Dosage Compensation

Question

Which of the following is a mechanism of dosage compensation?
A) Inactivation
B) Hyperactivation
C) Hypoactivation
D) All of these are correct.
E) None of these are correct.

Accepted Answer

Dosage compensation mechanisms can include inactivation of one of the X chromosomes in females (as seen in mammals), hyperactivation of the X chromosome in males (as seen in Drosophila), and hypoactivation, where both sexes adjust the activity of their sex chromosomes to ensure an equal expression of genes. Therefore, all the options listed are mechanisms of dosage compensation.