When the sheep Dolly was successfully cloned,it was produced by growing an in vitro fertilized egg where the normal egg nucleus had been removed and replaced by a nucleus from an adult.Since this nucleus is from an old mature animal,we would expect it to ______.Interestingly,tests show that this did not happen,a fact that currently puzzles researchers.
A)have additional Barr bodies
B)be mutated
C)have shorter telomeres
D)have longer telomeres
E)express transcription and translation more rapidly

Question

Quizplus · Accepted Answer

The nucleus from an adult animal would typically have shorter telomeres due to the aging process, but Dolly's telomeres were not as short as expected, which puzzled researchers.

When the Sheep Dolly Was Successfully Cloned,it Was Produced by Growing