DNA
- Created by: chelsey866
- Created on: 08-03-14 09:01
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- DNA
- Chromosomes are really long molecules of DNA
- DNA stands for Deoxyribonucleic acid
- It contains all the instructions to put an organism together and make it work
- DNA is found in the nucleus of animal and plant cells
- DNA is found in long molecules called chromosomes
- DNA has a double helix structure ( two spirals that are twisted round each other, a bit like a twisted ladder)
- A gene is a section of DNA
- Everyone has unique DNA
- 1) Everyone's DNA is unique apart from identical twins, who have the same DNA
- 2) DNA fingerprinting is a way of cutting up a person's DNA into small sections and separating them
- 3) This means you can tell people apart by comparing samples of DNA
- 4) DNA fingerprinting is used in forensic science.
- Chromosomes are really long molecules of DNA
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