Which process occurs when a salamander regenerates a lost limb?
A) The homeotic genes of the regenerating limb are expressed.
B) Certain cells in the limb dedifferentiate, divide, and then redifferentiate to form a new limb.
C) A new salamander develops from the lost limb.
D) The homeotic genes of the regenerating cells turn off.

Question

Quizplus · Accepted Answer

When a salamander regenerates a lost limb, certain cells in the limb dedifferentiate, divide, and then redifferentiate to form a new limb. This process is known as regeneration and is unique to certain animals like salamanders. The homeotic genes of the regenerating limb are expressed during this process. However, a new salamander does not develop from the lost limb, as the regeneration process only restores the lost tissue rather than forming a whole new organism. The homeotic genes of the regenerating cells do not turn off during the regeneration process, as they are essential for the proper growth and differentiation of the regenerating tissue.

Which Process Occurs When a Salamander Regenerates a Lost Limb