In Drosophila, dosage compensation is controlled by the male-specific lethal (MSL) complex consisting of MSL proteins and roX RNAs.Based on what you know about dosage compensation, the role of the MSL complex in males would be to
A)double the level of expression of genes on the X chromosome.
B)increase the level of expression of genes on the X chromosome by 50%.
C)decrease the level of expression of genes on the X chromosome by 50%.
D)decrease the level of expression of genes on the X chromosome by 100%.

Question

Quizplus · Accepted Answer

The MSL complex in Drosophila males doubles the expression of genes on the X chromosome to achieve dosage compensation, balancing gene expression between males (XY) and females (XX).

In Drosophila, Dosage Compensation Is Controlled by the Male-Specific Lethal