double helix,unless you're a clone,your genetic make up,carrier of genetic information,found in nucleus,deoxyribonucleic acid,creates difference,i know that it's in all living organisms,4 types of nitrogen bases,dna stands for deoxyribonucleic acid,everyone's dna is unique,your genetic makeup,it's unique to you,you get genes from both of your parents,contains genetic code of living organism,it is a genetic code,it's in your body,it stands for deoxyribonucleic acid,humans have it,a g t c,