Which of the following is NOT true?
A)Down syndrome is an example of aneuploidy.
B)The majority of cases of human sex chromosome abnormalities may never be diagnosed.
C)Most embryos with a normal chromosome number miscarry.
D)Aneuploidy is usually fatal in humans.
E)Aneuploidy typically arises through nondisjunction.

Question

Quizplus · Accepted Answer

Most embryos with a normal chromosome number do not miscarry. In fact, the majority of pregnancies result in the birth of a healthy baby with a normal chromosome number. The miscarriage rate is highest in the first trimester, and many miscarriages are due to chromosomal abnormalities.

Which of the Following Is NOT True