Why do you have your DNA?

Answer 1

DNA is the fundamental molecule for life, it is the "code" for "you". In the same way that 0's and 1's make up the code of a computer at its most fundamental point, DNA codes for living functions.

DNA is turned into RNA which makes Amino Acids, which build proteins.... and basically everything is proteins... your blood, your organs.

The way you look is determined by DNA as well, it determines if you will grow an arm or a wing, or if you will have blonde hair or brown....so on and so forth