DNA
- Created by: Shahrzad Zand
- Created on: 02-05-12 22:14
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The nucleus contains chromosomes, made up of genes, which are made up of a chemical called DNA (Deoxyribonucleic acid).
DNA contains instructions for making a cell and telling it what to do.
These instructions are called the genetic code.
Gene - Length of protein which gives instructions for making a certain protein
enzymes are a group of protein which control all chemical reactions in cells.
a DNA molecule is shaped like a twisted ladder (a double helix)
The sides are made of…
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