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Translation and Regulation

Translation and Regulation
Which of the following molecule catalyzes the transpeptidation reaction?

Peptidyl transferase
DNA polymerase
DNA ligase
RNA polymerase

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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
DNA
mRNA
tRNA

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Translation and Regulation
When was the genetic code completed?

1968
1952
1958
1966

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Translation and Regulation
Negative regulation of protein synthesis is accomplished by

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

A site
O site
T site
P site

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Translation and Regulation
Which of the following defines an open reading frame (ORF)?

A sequence of genome in bacteriophage
The sequence of a complete genome
A plasmid vector used in genome sequencing
A possible gene predicted by DNA sequencing

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