Drosophila eggs acquire an initial asymmetry before fertilization as a result of
A)production of bicoid proteins in one end of the egg.
B)maternal DNA molecules being deposited in one end of the egg.
C)nurse cell migration to one end of the egg.
D)maternal mRNA being deposited in one end of the egg.
E)attachments of cadherins to one end of the cell.

Question

Quizplus · Accepted Answer

Maternal mRNA is deposited in one end of the Drosophila egg, leading to an initial anterior-posterior axis asymmetry. This localized mRNA is then translated into the bicoid protein, which creates a concentration gradient that helps determine the different body segments and structures in the developing embryo.

Drosophila Eggs Acquire an Initial Asymmetry Before Fertilization as a Result