It’s normal.
It’s just like having a child who has disabilities and another child who doesn’t. The genes they get from their parents depends. It’s all about genetics.
B the answer is B I’m pretty sure if not I apologize
.... ....:: stuck on the same thing
Answer:
d
Explanation:
Your DNA contains a set of instructions that determine how much of a particular protein to create, which is called “gene expression.” And a number of different factors can influence the expression of a particular gene.