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

Looks reflect a tiny fraction of the DNA. The vast majority of the information in DNA has to do with internal processes. Outward appearance just isn’t that important, from an evolutionary survival perspective.