In fruit flies,morphogens
A) are composed of nucleic acids.
B) switch genes on and off.
C) are receptor proteins.
D) exist only in the eggs.

Question

Quizplus · Accepted Answer

Morphogens are molecules that have the ability to switch genes on and off, which in turn determines the development and differentiation of specific tissues and structures in an organism. This process is important in the development of fruit flies, as well as many other organisms. Morphogens are not composed of nucleic acids and are not receptor proteins. They are present throughout development, not just in eggs.

In Fruit Flies,morphogens