Question 9:
The genetic code is read in groups of three nucleotides, called codons, in mRNA that specifies for a particular amino acid.
tRNA molecules act as the amino acid carriers that by correctly pairing with the codon on mRNA can deliver the correct amino acid to the ribosome during translation. At the tip of each tRNA molecule is a group of three nucleotides called an anticodon and at the other end is where the corresponding amino acid is attached to the tRNA. Anticodons are complementary (and antiparallel) to their corresponding mRNA codons to ensure that the correct amino acid is brought to the ribosome where the protein molecule is synthesized.
An mRNA has the following codon:
3' UAC 5'.
What tRNA anticodon will bind to this codon?
(Please input your answer in the box provided in the following sentence).
The tRNA anticodon 5' 3' will bind to the mRNA codon 3' UAC 5'. (1 mark)
(For simplicity, assume that wobble pair pairing is NOT possible here).
Please enter your sequence in the 5' to 3' direction. Deductions will be made if a sequence is inputted in the wrong direction.
Carefully check that the sequence you input contains no typographical mistakes.
Do I have it correct or does it need to be reversed?
Homework Answers
An mRNA has the following codon:
3' UAC 5'.
The 5' GUA 3' tRNA anticodon will bind to this codon.
A codon in the mRNA will bind to an antiparallel sequence in the tRNA.
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