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A-Level Biology OCR A

Mutation Beneficial Effect Hiv Describe Examples Protein Synthesised

A beneficial mutation results in a new, advantageous characteristic in the organism's phenotype, such as immunity to HIV due to changes in cell surface membranes or the ability to digest lactose, which was advantageous for populations farming cattle.

A beneficial mutation results in a new, advantageous characteristic in the organism's phenotype, such as immunity to HIV due to changes in cell surface membranes or the ability to digest lactose, which was advantageous for populations farming cattle.

Front Describe how a mutation can have a beneficial effect + examples.
Back Beneficial effect - protein synthesised results in new and useful characteristic in the phenotype
  • Mutation in human cell surface membrane can lead to HIV not being able to bind and enter cells - immunity to HIV
  • Ability to digest lactose - present primarily in European populations who were more likely to farm cattle

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