Part 1 Heritage

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  • Created by: amypower
  • Created on: 22-06-15 17:55

- Most cells in your body have a nucleus. The nucleus contains chromosomes.

- Chromosomes are long coiled up lengths of a molecule caled DNA

- DNA is a long lost of chemical instructions on how to build an organism

- A gene is a short section of a chromosome ( and so a short section of DNA)

- Genes control many of our characteristics. E.G eye colour, hairiness, hair colour. Different gens control different characteristics

- Genes work in pairs, one will normally be dominant over the other

- In DNA the two letters are called…

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