Multiple Choice
How do mutations in somatic cells differ from mutations in gametes?
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15. Gene Expression
Mutations
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Which of the following are ways that point mutations may alter a gene?
A
Silent mutation
B
Frameshift mutation
C
Duplication mutation
D
Nonsense mutation
Verified step by step guidance1
Understand that a point mutation is a change in a single nucleotide base pair in DNA.
Recognize that a silent mutation is a type of point mutation where the change in nucleotide does not affect the amino acid sequence of the protein due to the redundancy of the genetic code.
Identify that a frameshift mutation is not a point mutation but rather results from insertions or deletions of nucleotides that are not in multiples of three, altering the reading frame of the gene.
Note that a duplication mutation involves the repetition of a segment of DNA, which is not typically classified as a point mutation.
Understand that a nonsense mutation is a point mutation that converts a codon encoding an amino acid into a stop codon, leading to premature termination of protein synthesis.
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