If a child is 50% DNA from either parent, why can it look like it has all features from only one side?

Question

If a child is 50% DNA from either parent, why can it look like it has all features from only one side?

In: Biology

Answer 1

Bcz not all genes express… There are two alleles of a gene in every human. The two alleles come from two parents. Sometimes one of them is dominant and the other one is recessive. So, the dominant one would determine that particular character (phenotype)