Question

Which of the following might result in a human zygote with 45 chromosomes?A) an error in either egg or sperm meiotic anaphaseB) failure of the egg nucleus to be fertilized by the spermC) failure of an egg to complete meiosis IID) incomplete cytokinesis during spermatogenesis after meiosis I

Answer 1

Answer:

A) an error in either egg or sperm meiotic anaphase

Explanation:

A condition in which human contain 45 chromosomes instead of 46 is called aneuploidy or abnormal chromosome number. The most common cause of aneuploidy happens during cell division when the chromosomes do not separate properly between the two cells.

A missing chromosome or an extra chromosome is a common cause of genetic disorders.