OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If a messenger RNA codon is UAC, which of the following would be the complementary anticodon triplet in the transfer RNA?
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ATG
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AUC
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AUG
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ATT
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Explanation:
Detailed explanation-1: -Getting Translation Started with the Start Codon The ribosome workbench uses the AUG codon as a universal signal to begin translation. The AUG start codon signals the ribosome to place in the amino acid methionine because the tRNA that has methionine attached to it has the anticodon sequence UAC.
Detailed explanation-2: -The first base of the anticodon in 5’-3’ direction binds with the third base in codon (reading in 5’-3’ direction). Thus, if the base sequence in codon of mRNA is 5’-AUG-3’, the complementary anticodon will be3’-UAC-5’ or 5’-CAU-3’.
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