What leads to an individual having too many or two few chromosomes?
A) Crossing over
B) Independent assortment
C) Homologous recombination
D) Nondisjunction

Question

Quizplus · Accepted Answer

Nondisjunction is the failure of chromosomes to separate properly during cell division, resulting in a cell with too many or too few chromosomes. This can happen during meiosis I or II, and can lead to genetic disorders such as Down syndrome or Turner syndrome. Crossing over, independent assortment, and homologous recombination are normal processes that contribute to genetic diversity, but they do not directly lead to an individual having too many or too few chromosomes.

What Leads to an Individual Having Too Many or Two