Which of the following statements regarding Down syndrome is false?
A) Trisomy 21 is the cause of Down syndrome.
B) Down syndrome is the most common serious birth defect in the United States.
C) People with Down syndrome usually have a shorter life span than normal.
D) Down syndrome is least likely to be seen in the infants of mothers over 40.

Question

Quizplus · Accepted Answer

Down syndrome is actually more common in babies born to mothers over the age of 40. This is because as a woman ages, there is an increased risk of chromosomal abnormalities occurring during the development of the egg cells.

Which of the Following Statements Regarding Down Syndrome Is False