Only nine types of aneuploids are known in newborns because
A) only nine chromosomes undergo nondisjunction.
B) most types of aneuploids are lethal early in development.
C) most aneuploids do not cause detectable defects.
D) missing chromosomes cause most lethal aneuploids.
E) most aneuploids do not affect the phenotype.

Question

Quizplus · Accepted Answer

Most types of aneuploids are lethal early in development, therefore only nine types of aneuploids are known in newborns.

Only Nine Types of Aneuploids Are Known in Newborns Because