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TRANSLATION AND REGULATION

Translation and Regulation
Which binding is inhibited by pactamycin?

Formation of peptide bond in P site
Peptidyl t-RNA to the 50S subunit
Initiator-tRNA to 30S/40S initiation complexes
Aminoacyl-tRNA to the A-site of 30S subunit

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Translation and Regulation
Which of the following act as the blueprint or template for the process of protein synthesis that takes place on ribosomes?

rRNA
mRNA
DNA
tRNA

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Translation and Regulation
Negative regulation of protein synthesis is accomplished by

the binding of RNA polymerase to the promoter
the binding of a repressor to the DNA
the binding of a repressor to the RNA polymerase
allosteric inhibition

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Translation and Regulation
Site in the ribosome from which the tRNA donates amino acids to the growing polypeptide chain is

T site
A site
O site
P site

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Translation and Regulation
When was the genetic code completed?

1952
1966
1958
1968

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