Suppose the protein specified by bicoid were injected into Drosophila embryos, so that a high concentration was present everywhere in the embryo. What might be the result of such an experiment?
A) The embryos would halt their development.
B) The embryos would show no development of posterior regions.
C) The embryos would show no development of anterior regions.
D) The embryos would grow larger than normal.

Question

Quizplus · Accepted Answer

Bicoid is a protein that functions as a morphogen in Drosophila (fruit flies), crucial for the early determination of the embryo's anterior region. If bicoid were present in high concentrations throughout the embryo, it would interfere with the normal gradient necessary for specifying posterior regions, potentially leading to embryos lacking proper development of those posterior regions.

Suppose the Protein Specified by Bicoid Were Injected into Drosophila