All the new cells produced by cell division contain DNA.
DNA contains a sequence of chemicals. The sequence is unique in every individual’s DNA.
Some DNA sequences are coded instructions for making proteins such as enzymes, hormones, muscle, hair and nails.
A DNA sequence that instructs a cell to make a protein is called a gene.
In animal, fungal and plant cells, DNA is stored in the nucleus. It is packaged up into chromosomes because there is so much of it. Proteins are made in the cytoplasm of the cell.