Multiple Choice
Which of the following is a major reason that a virus is considered to be a nonliving entity in the context of organic chemistry?
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Intro to Organic Chemistry
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In the context of organic chemistry, can a point mutation result in a frameshift mutation?
A
Only if the point mutation is a deletion.
B
Yes, a point mutation can cause a frameshift mutation.
C
Only if the point mutation occurs at the start of the sequence.
D
No, a point mutation cannot cause a frameshift mutation.
Verified step by step guidance1
Understand the definitions: A point mutation involves a change in a single nucleotide base in the DNA sequence, whereas a frameshift mutation involves the insertion or deletion of nucleotides that alters the reading frame of the sequence.
Recognize the impact of a point mutation: Since a point mutation changes only one nucleotide, it does not affect the overall reading frame of the sequence. It may change one amino acid but does not shift the sequence.
Consider the nature of frameshift mutations: Frameshift mutations occur when nucleotides are added or removed, changing the grouping of the codons and thus the reading frame, which can drastically alter the protein produced.
Evaluate the options: The statement 'Only if the point mutation is a deletion' is incorrect because a point mutation refers to a single nucleotide change, not a deletion of multiple nucleotides.
Conclude with the correct answer: A point mutation cannot cause a frameshift mutation because it does not involve the addition or deletion of nucleotides that would shift the reading frame.
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