Differences in the expression of the gene _______ account for many of the phenotypic differences between freshwater and marine forms of three-spine sticklebacks.
A) bicoid
B) Pax6
C) Pitx1
D) Ubx
E) Gremlin

Question

Quizplus · Accepted Answer

The gene Pitx1 is known to be involved in the development of pelvic spines in sticklebacks, and expression differences in Pitx1 have been found to be responsible for differences in the presence and size of these spines between freshwater and marine populations.

Differences in the Expression of the Gene _______ Account for Many