How does the development of a mouse leg differ from the development of a fly leg?
A) In a mouse leg, the proximal structures develop first.
B) In a mouse leg, the gene Hh controls development.
C) In a fly leg, the proximal segments develop first.
D) In a fly leg, the gene Shh controls development.

Question

Quizplus · Accepted Answer

In a mouse leg, the proximal structures develop first, whereas in a fly leg, the distal structures develop first. The gene Shh (Sonic hedgehog) is involved in mouse limb development, while Hh (Hedgehog) is involved in fly limb development.

How Does the Development of a Mouse Leg Differ from the Development