Which of the following statements about Down syndrome is true?
A) The cognitive functioning of children with Down syndrome is normal.
B) The conditions of children with Down syndrome can be improved with dietary changes.
C) Down syndrome is a sex-linked chromosomal disorder.
D) The risk of having a child with Down syndrome rises with the age of the mother.

Question

Quizplus · Accepted Answer

Down syndrome is associated with an extra copy of chromosome 21, and the risk of having a child with Down syndrome increases with maternal age. This is due to the higher likelihood of nondisjunction events during meiosis in older eggs.

Which of the Following Statements About Down Syndrome Is True