What percentage does each parent contribute to a child's genotype?

Each parent contribute 50 percent. A person have 46 genes and 23 comes from the mother and 23 comes from the father

you are made of 50% mother DNA and 50% father DNA.

Explanation:

The color of your eyes/hair etc is determined by which copies of these genes your parents have, and which one is then switched on in you.

d) physical means can be used to separate the components of air.

truck y has a greater velocity than truck x.