B3 - Beneficial Mutations

Information on the types of mutations that can be beneficial.

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Why can some mutations be beneficial?

  • Occasionally, mutations can be beneficial.
  • For example, if a different protein is produced, then it could actually be an improvement on the old one.
  • This can give the organism a survival advantage over others in its population.
  • This can lead to natural selection and evolution over time.
  • Mutations can also cause resistance to some illnesses.
  • Some mutations, however, make no difference.
  • If it has no effect, then it is neither beneficial or negative, so no problems caused!
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