Snuppy, a male Afghan hound, was created by transferring the nucleus from an ear cell of the male Afghan, Tai, into an enucleated egg from a donor. The embryo was transplanted into a surrogate mother to develop to term. Which of the following animals would be a genetic match for Snuppy if mitochondrial DNA were tested and if Snuppy were not a clone, but the product of in vitro fertilization?
A)Tai
B)the egg donor
C)the surrogate
D)both Tai and the egg donor
E)both Tai and the surrogate

Question

Quizplus · Accepted Answer

Mitochondrial DNA is inherited maternally, so the egg donor would be the source of Snuppy's mitochondrial DNA. Because Snuppy was created by transferring the nucleus from Tai's cell into the egg donor's enucleated egg, Tai's mitochondrial DNA would not be present in Snuppy. The surrogate would also not contribute to Snuppy's mitochondrial DNA.

Snuppy, a Male Afghan Hound, Was Created by Transferring the Nucleus