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TRANSLATION AND REGULATION

Translation and Regulation
Which binding is inhibited by pactamycin?

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

DNA
rRNA
mRNA
tRNA

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Translation and Regulation
Negative regulation of protein synthesis is accomplished by

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

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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
O site
P site
A site

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Translation and Regulation
When was the genetic code completed?

1952
1968
1958
1966

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