Which of the following is TRUE of the cloning experiment that resulted in Dolly the sheep?
A) Dolly was genetically identical to the egg-cell donor.
B) Dolly was cloned by fusing an egg with an embryonic stem cell.
C) Dolly was infertile, which indicated incomplete nuclear reprogramming.
D) Dolly was cloned by using a differentiated cell fused to an egg from another breed of sheep.
E) Dolly was cloned by fusing the nuclei from two separate eggs harvested from the same individual.

Question

Quizplus · Accepted Answer

Dolly the sheep was cloned by using a differentiated (somatic) cell, specifically a mammary cell, which was fused with an enucleated egg cell from another sheep of a different breed. This process involved transferring the nucleus from a somatic cell into an egg cell that had its nucleus removed, creating a new cell that could develop into an embryo and then into a living organism genetically identical to the somatic cell donor.

Which of the Following Is TRUE of the Cloning Experiment