Describe how one amino acid is added to a polypeptide that is being formed at a ribosome during translation - AQA - A-Level Biology - Question 3 - 2021 - Paper 1
Question 3
Describe how one amino acid is added to a polypeptide that is being formed at a ribosome during translation.
1. The tRNA molecule brings the specific amino acid to ... show full transcript
Worked Solution & Example Answer:Describe how one amino acid is added to a polypeptide that is being formed at a ribosome during translation - AQA - A-Level Biology - Question 3 - 2021 - Paper 1
Step 1
1. The mRNA codon complementary to the non-mutant DNA triplet
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Answer
The mRNA codon complementary to the non-mutant DNA triplet is AGG.
Step 2
2. The mutated mRNA codon that could cause the change from Arg to Gly in the crystalline protein
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Answer
The mutated mRNA codon is GGG.
Step 3
3. The DNA triplet complementary to this mutated mRNA codon
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Answer
The DNA triplet complementary to this mutated mRNA codon is CCC.
