Which of the following is true with regard to fragile X syndrome?
A)The physical appearance of children with fragile X syndrome is markedly altered.
B)Mental abilities are relatively normal in individuals with fragile X syndrome.
C)This disorder occurs more frequently in males than in females.
D)This disorder is caused by the missing X chromosome in humans.

Question

Quizplus · Accepted Answer

Fragile X syndrome is a genetic disorder that results from an abnormality in the X chromosome,which becomes constricted and often breaks.This disorder occurs more frequently
in males than in females,possibly because the second X chromosome in females negates the effects of the abnormal X chromosome.

Which of the Following Is True with Regard to Fragile