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

You are getting into dominant and recessive genes. Depending on which genes get passed on and which ones are dominant and which ones are recessive; that will determine what the child looks like. This can get pretty hairy quickly.