point mutation: Quick Facts

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Facts

Also Known As	substitution mutation • base substitution

Photos

Diagram showing how point mutations, or single nucleotide changes in a codon, result in different amino acids in a protein. The central isoleucine codon (AUA) is surrounded by other codons, each differing by one nucleotide, with corresponding amino acid molecular structures and color-coded atoms.

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Topics

frame-shift mutation missense mutation base-pair substitution nonsense mutation mutation somatic mutation germinal mutation BRCA mutation antigenic shift mutagen

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