Can genes make a different skin colored child

Scientists have figured out that several genes are involved in skin color.

Explanation:

Parents can have children with skin color that is significantly lighter or darker than their own. Sometimes a particular gene can have a much bigger effect than other genes.

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

a:

by the combination of an unlimited number of elements