Answer:
An earthquake that isolates a population of rodents on a mountain from other populations of rodents
Explanation:
1,2and,3 those are all the answers
Answer:
In recent years PGD technology has been increasingly used by infertile patients undergoing IVF treatment, in order to screen their embryos for chromosomal abnormalities. Aneuploidy is extremely common in human embryos and leads to a developmental arrest, implantation failure and spontaneous abortion.
