To dilute a solution you either have to solvent or the amount of solute.
answer choices:
add, add to
reduce, add to
add, reduce
reduce, do nothing to

Add, reduce

Explanation:

Concentration is essentially a ratio of the amount of solute to the amount of solvent.

\text{Concentration} = \dfrac{\text{amount of solute}}{\text{amount of solvent}}

If you want to make a solution more dilute (less concentrated), you must do one of two things:

A is wrong. If you add both more solute and more solvent, the concentration will stay about the same.

B is wrong. If you add more solute and reduce the amount of solvent, the concentration will increase.

D is wrong. If you add more solute and do nothing to the amount of solvent, the concentration will increase.

the child will have heterozygous dominant chromosomes as characters of his father are dominant over the characters of his mother.

the child is heterozygous