What kinds of chromosomal defects invariably result in miscarriage in early pregnancy?
A) all trisomies involving autosomes
B) all monosomies involving autosomes
C) all monosomies involving the sex chromosomes
D) all trisomies involving chromosome 21
E) all trisomies involving the sex chromosomes

Question

Quizplus · Accepted Answer

Monosomies involving autosomes (such as Turner syndrome, which involves a missing X chromosome) typically result in miscarriage in early pregnancy.

Answer: A, D, E 
 Trisomies involving autosomes (such as Down syndrome, which involves an extra copy of chromosome 21) and sex chromosomes can sometimes result in miscarriage in early pregnancy, but not always. Some trisomies can result in live births with varying degrees of health complications.

What Kinds of Chromosomal Defects Invariably Result in Miscarriage in Early