When a researcher transplanted the nucleus of an intestinal cell from a tadpole into an egg cell whose nucleus had been destroyed, the egg developed into a normal frog. This illustrates that
A) scientists can clone a human by putting one of his or her nuclei into an egg cell.
B) the homeobox genes in a transplanted nucleus undergo mutation.
C) genes are gained during the process of differentiation.
D) each cell of an organism has all the genes needed for development.
E) a nucleus that is removed from its normal location is influenced by adjoining cells.

Question

Quizplus · Accepted Answer

This experiment demonstrates that all the genetic information required for the development of a frog is retained in the nucleus of every cell, including differentiated cells like those from the intestine. It shows that despite differentiation, cells do not lose their genetic information, which is a key principle in developmental biology and cloning research.

When a Researcher Transplanted the Nucleus of an Intestinal Cell