To what extent are your adult physical features pre determined vs random?

Question

As in, is it always somehow within one’s genetic code to “stop” growing at a certain height, hand size, etc. or do these traits self-regulate as one gets older? Do we even know the answer to this?

In: Biology

Answer 1

There are genetic traits, but there is a lot of random in how they are inheirited from the parents. To execute those traits, you need the right amounts of food and exercise. Genetic forensic height predictions are usually within 2-3%, but that’s because most of the subjects have adequate nutrition.