Multiple Choice
Which type of mutation changes a nucleotide base in the DNA sequence but does not alter the amino acid specified by the codon?
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17. Mutation, Repair, and Recombination
Types of Mutations
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which type of mutation results in the substitution of a single nucleotide that changes a codon to one that encodes a different amino acid?
A
Silent mutation
B
Nonsense mutation
C
Missense mutation
D
Frameshift mutation
Verified step by step guidance1
Understand the types of point mutations: a point mutation is a change in a single nucleotide base in DNA.
Recognize that a silent mutation changes a nucleotide but does not alter the amino acid due to the redundancy of the genetic code.
Know that a nonsense mutation changes a codon to a stop codon, leading to premature termination of protein synthesis.
Identify that a missense mutation changes a single nucleotide resulting in a codon that codes for a different amino acid, thus altering the protein sequence.
Distinguish frameshift mutations as insertions or deletions that shift the reading frame, not just a single nucleotide substitution.
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