Monosomy Could Result From

Question

Monosomy could result from
A)an ovum of 24 chromosomes fertilized by a sperm with 23 chromosomes.
B)an ovum of 22 chromosomes fertilized by a sperm with 23 chromosomes.
C)an ovum of 23 chromosomes fertilized by a sperm with 23 chromosomes.
D)None apply.

Accepted Answer

Monosomy occurs when an individual has only one copy of a particular chromosome instead of the usual pair. This can happen if an ovum with 22 chromosomes (one less than the normal 23) is fertilized by a normal sperm with 23 chromosomes, leading to a total of 45 chromosomes instead of the normal 46.