how dna help to sujest facial features of a baby ?

Answer 1

I guess you mean, how do DNA suggest the facial features of a baby? Each parent give half of the DNA to create the baby. This includes facial features. My daughter face is the same shape as my nieces because of this. If you look at a young child, babies can be hard to tell, you can see the genes from both sides of the family in their noses, ears, eyebrows, etc.