Multiple Choice
In genetics, what best describes a missense mutation?
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17. Mutation, Repair, and Recombination
Types of Mutations
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Which of the following is an example of a frameshift mutation?
A
A three-nucleotide deletion that removes one amino acid but preserves the reading frame (in-frame deletion)
B
A base substitution that creates a premature stop codon (nonsense mutation)
C
Insertion of one nucleotide into a coding sequence, shifting the reading frame downstream
D
A point mutation that changes one codon but does not shift the reading frame (missense mutation)
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