Question

Why do females who are diagnosed with Fragile X syndrome tend to be less severely affected by the disorder?

a) They have more severe mutations
b) They have two X chromosomes
c) They lack the FMR1 gene
d) They are more resistant to genetic disorders

Answer 1

Females with Fragile X syndrome are less severely affected because they have two X chromosomes.

Step-by-step explanation:

Females who are diagnosed with Fragile X syndrome tend to be less severely affected by the disorder because they have two X chromosomes. Fragile X syndrome is an X-linked disorder, meaning that it is caused by a mutation on the X chromosome. Females have two X chromosomes, so if one is affected by the mutation, the other X chromosome can compensate for the abnormality.