A) UAG
B) AUG
C) UAA
D) UGA
Correct Answer: B
Solution :
In the genetic code, a stop codon (or termination codon) is a nucleotide triplet within mRNA that signals a termination of translation. Stop codon signal the termination of this process by binding release factors which cause the ribosomal subunits to dissociate, releasing the amino acid chain. In the standard genetic code, there are three stop codons (for RNA/DNA) respectively. (i.e.. for RNA and for DNA) i.e., UAG (amber), UAA (ochre) and UGA (opal) for DNA. TAG (amber), TAA (ochre) and TGA (opal) for DNA. While, the AUG acts as the strandard start (or initiation) codon.
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