In a frameshift mutation, all of the amino acids before the shift are changed.Multiple ChoiceFalseTrue
Question
In a frameshift mutation, all of the amino acids before the shift are changed.
- Multiple Choice
- False
- True
Solution
Answer
The correct answer is True.
Explanation
In a frameshift mutation, there is an insertion or deletion of nucleotides that shifts the reading frame of the codons in the mRNA sequence. This change alters the entire downstream amino acid sequence from the point of mutation onward. As a result, all of the amino acids coded after the mutation are affected, and depending on the location of the mutation, it can also alter the amino acids before the shift. Therefore, the statement that "all of the amino acids before the shift are changed" can be considered True because once a frameshift occurs, the normal protein synthesis sequence is disrupted, and the translation can diverge significantly from the original sequence.
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