In Drosophila,the MADS box-containing gene,Mef2,is expressed in muscle precursor cells.In Mef2 mutants,these cells fail to develop into muscle fibers,and instead undergo apoptosis.Based on this information,and what you know about MADS box-containing genes,Mef2 plays a role in
A)determination of muscle precursors.
B)differentiation of muscle cells.
C)the initiation of apoptosis.
D)morphogenesis.

Question

Quizplus · Accepted Answer

MADS box-containing genes are known to play a role in differentiation, specifically in regulating cell differentiation and tissue development. In this case, since the Mef2 gene is expressed in muscle precursor cells and mutants display a failure in developing into muscle fibers, it is likely that Mef2 is involved in the differentiation of muscle cells.

In Drosophila,the MADS Box-Containing Gene,Mef2,is Expressed in Muscle Precursor Cells