Answer:
A
Explanation:
my was the same but A,B,C,D
Due to the cones in your eyes(OR else they're called the photo receptors together with Rods)
The correct answer is:
It occurs when part of a chromosome breaks off and attaches to another chromosome.
It results in the duplication of these genes on the same chromosome.
Fragile X syndrome can occur where a person would have 700 insertion repeats.
Difficulties include delay in crawling or walking, hyperactive or impulsive behavior, mental retrdation, flat feet, flexible joints, and large body size.
Hope it helps!
