Mutation (Edexcel IGCSE Biology (Modular)) : Revision Note
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Mutations
Mutations are rare, random changes that occur in the sequence of DNA bases in a gene or a chromosome
Mutations can be inherited
They occur continuously
As the DNA base sequence determines the sequence of amino acids that make up a protein, mutations in a gene can sometimes lead to a change in the protein that the gene codes for
Most mutations do not alter the protein or only alter it slightly so that its appearance or function is not changed
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