Mutations (B1)

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  • Created by: caits
  • Created on: 17-03-14 17:01

A mutation is a change in a gene sequence

Causes:

  • Chance (commonest cause)
  • Carcinogenic chemicals 
  • UV Radiation
  • Ionising radiation

Most mutations are bad for us. They can cause inherited disorders like;

  • Haemophilia
  • Cystic Fibrosis
  • Sickle Cell anaemia
  • Colour blindness

This is because the mutated genes are unable to  make the correct protein

Alleles:

Different versions of the same protein are called alleles.

EG eye…

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