What is the relationship between a CGG nucleotide sequence on the X chromosome and the development of Fragile X syndrome?
A) Anyone who has a CGG nucleotide sequence repeating more than twice on the X chromosome will show symptoms of Fragile X syndrome.
B) Any male who has a CGG nucleotide sequence repeating more than twice on the X chromosome will show symptoms of Fragile X syndrome.
C) Anyone who has more than 50 repeats of the CGG sequences usually shows symptoms of Fragile X syndrome
D) In general, the more repeats of the CGG nucleotide sequence, the more severe the children's cognitive impairments.

Question

Quizplus · Accepted Answer

The severity of Fragile X syndrome is generally correlated with the number of CGG repeats, with more repeats often leading to more severe cognitive impairments.

What Is the Relationship Between a CGG Nucleotide Sequence on the X