Which of the following processes might produce a human zygote with 45 chromosomes?
A) an error in meiotic anaphase occurring in either an egg or sperm
B) failure of the egg nucleus to be fertilized by the sperm
C) failure of an egg to complete meiosis II
D) incomplete cytokinesis during spermatogenesis after meiosis I

Question

Quizplus · Accepted Answer

An error in meiotic anaphase, such as nondisjunction, can lead to gametes with an abnormal number of chromosomes, resulting in a zygote with 45 chromosomes when combined with a normal gamete.

Which of the Following Processes Might Produce a Human Zygote