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Question

Which one of the following pairs of codons are correctly matched with their function or the signal for the particular amino acid?

A
AUG, ACG : Start/Methionine
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B
UUA, UCA : Leucine
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C
GUU, GCU : Alanine
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D
UAG, UGA : Stop
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Solution

The correct option is A UAG, UGA : Stop
In the genetic code, a stop codon is a nucleotide triplet within messenger RNA that signals a termination of translation. Stop codons signal the termination of this process by binding release factors, which cause the ribosomal units to disassociate, releasing the amino acid chain. Examples are UAA, UGA and UAG.


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