Question

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.

Answer 1

it is expected to have shorter telomeres

Step-by-step explanation:

with aging, telomeres activities reduce resulting in shortening, thus, since the nucleus was replaced with an older one, it is expected that the telomeres length will shorten.