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Multiple Choice
What effect would a mutation have on a protein if the DNA codon sequence GTT changes to GTC?
A
The protein will be truncated due to a stop codon.
B
No effect, as both codons code for the same amino acid.
C
The protein will be elongated due to an insertion.
D
The protein will have a different amino acid, altering its function.
Verified step by step guidance
1
Identify the original DNA codon sequence: GTT.
Determine the amino acid coded by the original codon GTT. Use a codon table to find that GTT codes for the amino acid Valine.
Identify the mutated DNA codon sequence: GTC.
Determine the amino acid coded by the mutated codon GTC. Use a codon table to find that GTC also codes for the amino acid Valine.
Conclude that since both GTT and GTC code for the same amino acid Valine, the mutation is a silent mutation and has no effect on the protein's structure or function.