Autosomal monosomy is not seen in live births because:

A) its effects are so small as to be overlooked.
B) its effects do not set in until adulthood.
C) its effects are so lethal as to cause spontaneous abortion early in pregnancy.
D) it only occurs in sex chromosomes and therefore does affect nonreproductive function.
E) the births lead to the establishment of a clone of abnormal cells.

Autosomal Monosomy

A genetic condition characterized by the presence of only one copy of a chromosome instead of the usual pair in an organism's autosomal cells.

Live Births

A reproductive strategy where offspring are born in a developed state, as opposed to being laid as eggs.

Spontaneous Abortion

The natural ending of a pregnancy before the fetus is capable of surviving outside the uterus, also known as miscarriage.