To what extent do genes encode the facial features that make them distinctly recognizable to us? Is there a way to say it as a "%"?
I can certainly see how your basic head size/shape and position of nose/mouth/eyes, etc is baked in there somehow.
But I'd love to know, the fundamentals of why you look like your parents, what is that? Certain (75%?) placement of facial features locked in by genes, so of course you look like them, but then the last 25% up to developmental noise? (Example -- fingerprints, almost completely determined by developmental noise, right?)
I can certainly see how your basic head size/shape and position of nose/mouth/eyes, etc is baked in there somehow.
But I'd love to know, the fundamentals of why you look like your parents, what is that? Certain (75%?) placement of facial features locked in by genes, so of course you look like them, but then the last 25% up to developmental noise? (Example -- fingerprints, almost completely determined by developmental noise, right?)