DNA & Cells
A puzzle of the double helix of DNA.
Introduction
What is DNA? What are cells? DNA is what gives an organism it's characteristics - from hair colour, eye colour, right down to the size of the organism itself. Cells make up either the whole of the organism [in terms of prokaryotes], or a small part of the organism [eukaryote organisms]. Find out about what DNA is, and how cells make up our bodies, as well as how cells form the smallest of organisms.
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