Question

The product of the bicoid gene in Drosophila provides essential information about _____.

A) the dorsal-ventral axis
B) the left-right axis
C) segmentation
D) the anterior-posterior axis

Answer 1

The correct answer is: D) the anterior-posterior axis

Bicoid gene encodes for the protein that is very important for embryogenesis of Drosophila. Bicoid protein concentration gradient patterns the anterior-posterior (A-P) axis or simply saying determines which end is the front end of the embryo.

Bicoid gene is maternal-effect gene meaning that zygote inherits the Bicoid directly from its mother.