A gene called Mex1 is expressed in the forelimb bud. Mis-expression of the Mex1 gene in the flank of a chicken embryo has no effect on the embryo. In a separate experiment, deletion of Mex1 prevents limb bud development. What do these findings demonstrate?

Question

A gene called  Mex1  is expressed in the forelimb bud.  Mis-expression of the  Mex1  gene in the flank of a chicken embryo has no effect on the embryo.  In a separate experiment, deletion of  Mex1  prevents limb bud development. What do these findings demonstrate?

Accepted Answer

Mex1  is required, but not sufficient for forelimb development

Answer

Mex1  is sufficient, but not required to form a forelimb bud

Answer

Mex1  is both necessary and sufficient to form a forelimb bud

Answer

Mex1  is only important in chicken limb development

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A gene called Mex1 is expressed in the forelimb bud. Mis-expression of the M...

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