Most mutations have no effect on organisms. Organisms all have large amounts of genetic code, most of which has no effect. As a result, mutation of this code is rarely meaningful.
Answer:
a) F1 offspring will be AaBbCc
b) for part b and a explanation see the picture attached
Answer:
it regulates blood volume and blood pressure.
Explanation:
I think it's the nucleus. Isn't the nucleus the brain of the cell?