In wildtype Drosophila embryos, the bicoid mRNA is localized to the anterior end of the embryo. If bicoid mRNA was injected into the embryo's posterior end as well, which of the following developmental events would occur?
A) The embryo would grow extra wings and legs.
B) The embryo would have altered segmentation.
C) The embryo would show anterior structures at both ends of the embryo.
D) The embryo would develop normally.

Question

Quizplus · Accepted Answer

Bicoid mRNA is a morphogen that specifies anterior structures in Drosophila embryos. Injecting it into the posterior end would result in the formation of anterior structures (such as the head and thorax) at both ends of the embryo.

In Wildtype Drosophila Embryos, the Bicoid MRNA Is Localized to the Anterior