Why are many polyploids sterile?
A) Extra sets of chromosomes segregate irregularly in meiosis leading to aneuploidic gametes
B) Extra sets of chromosomes segregate regularly in meiosis leading to aneuploidic gametes
C) Extra sets of chromosomes segregate irregularly in mitosis leading to aneuploidic gametes
D) All of these
E) None of these

Question

Quizplus · Accepted Answer

Polyploids have extra sets of chromosomes, and during meiosis, these extra sets of chromosomes may segregate irregularly, leading to the production of aneuploidic gametes. Aneuploidic gametes have an abnormal number of chromosomes, which can result in infertility or reduced fertility, making many polyploids sterile.

Why Are Many Polyploids Sterile