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?

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 required, but not sufficient for forelimb development

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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