DNA Mutations

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8 Terms

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Silent

Nucleotide substitution doesn’t change amino acid

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Missense

Nucleotide substitution changes the amino acid

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Nonsense

Nucleotide substitution creates a stop codon

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Frameshift

Insertion or deletion that changes the reading frame of translation

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Genetic Variation

Raw material for evolutionary change

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Genetic Mutation

Permanent change in base sequences

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Point Mutation

Single nucleotide substitution leads to a change in a specific codon

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Mutagen Examples

x-rays, UV radiation, exposure to chemicals, and viruses