Which of the following statements about fragile X syndrome is true?
A) It only affects males.
B) It only affects females.
C) It occurs in about 1 in every 3,000 U.S. births.
D) It occurs in both males and females.

Question

Quizplus · Accepted Answer

Fragile X syndrome is a genetic condition that affects both males and females. It is caused by a mutation in the FMR1 gene, which is located on the X chromosome. It is estimated that fragile X syndrome occurs in about 1 in every 4,000 males and 1 in every 8,000 females.

Which of the Following Statements About Fragile X Syndrome Is