Question

In Klinefelter syndrome males have chromosomes XXY. This is an example of:

A.) Non-disjunction of sex chromosomes

B.) Crossing over

C.) Chromosomal rearrangement

Answer 1

This is an example of non-disjunction of sex chromosomes, The correct option among all the options that are given in the question is the first option or option "A". The other choices in the question are incorrect and can be neglected. I hope that this is the answer that has actually come to your desired help.