The nucleus is the controlsystem and it contains DNA. It controls cellactivities.
Genes
are short regions of the chromosome. They are a code that tells your body to make you in a certain way. There are thousands of genes on every chromosome.
DNA
is a molecule that is present in every living thing. it is one of the materials that make up the chromosomes. it is a code or set of instructions for creating a livingorganism.
Chromosomes
Are large molecules mostly made up of DNA and protein. You have 46 chromosomes. 23 chromosomes were given to you by your mum and another 2 were given by your dad