If You Introduce Stem Cells with a New Gene into a Mouse

Multiple Choice

If you introduce stem cells with a new gene into a mouse blastula, and that mouse grows up to produce pups that also have that transgene, what can you conclude about the fate of those original transgenic stem cells?

A) They were passed directly to the offspring.
B) They did not become incorporated into the parent's genome.
C) They became sperm or eggs.
D) They allowed the mouse to self-fertilize.