What happened when Weiss grafted an extra leg onto a salamander adjacent to one of the hindlegs?
A) The new leg gradually took over for the old.
B) The new leg withered and died.
C) Nerves from the old leg attached to the new in a random fashion.
D) Branches of axons from the old leg attached to corresponding muscles in the new.

Question

Quizplus · Accepted Answer

According to the passage, when Weiss grafted an extra leg onto a salamander adjacent to one of the hindlegs, branches of axons from the old leg attached to corresponding muscles in the new. Therefore, the best choice is D.

What Happened When Weiss Grafted an Extra Leg onto a Salamander