What are the elements of human genetics?

Plutonium

we are made of hydrogen,nitrogen,carbon and oxygen.

Yes, in theory, but it's considered unethical.

I know one way is X-Rays, and possibly UV rays, i think...

The eye color, the hair color, the genetics that make it a boy or girl, the height in which the baby will grow(which is depended on the height of the parents), the skin color, the diseases that the...