Multiple Choice
Which of the following DNA mutations is a frameshift mutation?
36
views
17. Mutation, Repair, and Recombination
Types of Mutations
Multiple Choice
In the context of types of mutations, what is a silent mutation?
A
A nucleotide substitution that changes a codon and results in a different amino acid (missense mutation)
B
A nucleotide substitution that creates a stop codon and prematurely terminates translation (nonsense mutation)
C
A nucleotide substitution that changes a codon but does not change the amino acid incorporated into the protein
D
An insertion or deletion that shifts the reading frame of the coding sequence (frameshift mutation)
Verified step by step guidance1
Understand that mutations are changes in the DNA sequence that can affect the resulting protein in different ways.
Recognize that a silent mutation is a specific type of nucleotide substitution where the codon changes but still codes for the same amino acid due to the redundancy of the genetic code.
Recall that the genetic code is degenerate, meaning multiple codons can code for the same amino acid, which is why some substitutions do not alter the protein sequence.
Differentiate silent mutations from other types: missense mutations change the amino acid, nonsense mutations create a stop codon, and frameshift mutations alter the reading frame.
Conclude that a silent mutation does not affect the protein's amino acid sequence despite a change in the DNA sequence.
Related Videos
Related Practice
