DNA mutations

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4 Terms

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What is a silent mutation?

  • a mutation that doesn’t change the amino acid

  • often base change in 3rd position of codon

2
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What is a nonsense mutation?

  • mutation that results in a stop codon

3
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What is a missense mutation?

  • point mutation that changes amino acid sequence

  • which in turn may make protein non-functional

4
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What is a frameshift mutation?

  • caused by insertion or deletion of a number of nucleotides

  • which results in the subsequent reading of DNA ‘downstream’ being completely wrong