Tristan has a genetic disorder that results from an abnormality in the X chromosome,which becomes constricted and often breaks.His doctor informed Tristan's mother that he has:
A)Fragile X syndrome.
B)XYY syndrome.
C)Turner syndrome.
D)Tay-Sach's disease.

Question

Quizplus · Accepted Answer

Fragile X syndrome is a genetic disorder caused by a mutation in the FMR1 gene located on the X chromosome. It is often associated with a constriction or "fragility" of the X chromosome that can result in breaks. This syndrome is one of the leading causes of intellectual disability and autism spectrum disorders, affecting males more severely than females.

Tristan Has a Genetic Disorder That Results from an Abnormality