DNA replication
DNA stands for Deoxyribose Nucleac Acid. DNA makes a double helix, made up of millions of nucleotides. Nucleotides are a phosphate, sugar, and a base. The nitrogen bases found in DNA are Adenine, Thymine (only in DNA), Guanine, and Cytosine. DNA is found in the nucleas, DNA replication is semi-conservative because there's some old DNA, and some new DNA.