What is DNA?

What is DNA?

Alastair Greenshields (Principal) gives expert video advice on: What is DNA?; Why do you start with the Y chromosome?; Is the Y chromosome found in both sexes? and more...

DNA is found within our cells. Everybody has DNA, and it's our genetic code. It's essentially a long string of letters. If you imagine War and Peace, it's a very long book. Our body uses it. It reads particular sentences to produce proteins and enzymes, and to replicate the cells. Essentially it's our genetic code which we use to build our bodies and to reproduce.