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During protein synthesis in an organism ...

During protein synthesis in an organism at one point the process comes to a halt. Select the group of the three codons from the following, from which anyone of the three could bring about this halt `:`

A

UUU,UUC,UAU

B

UUC, UUA, UAC

C

UAG, UGA, UAA

D

UUG, UCA, UCG

Text Solution

Verified by Experts

The correct Answer is:
c
Nonsense codon is a set of three nucleotides for which there is no corresponding iRNA moleule to insert an amino acid into the polypeptide chain. Protein synthesis is hence terminated and the caompleted polypeptide from the ribosome. Three steps codons are UAA (ochre). UAG (amber) and UGA (optal). Mutations which generate anyof these condons in a position which normally contains a codon spccifying and amino acid are known a snunsense mutation
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