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Translation and Regulation

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

mRNA
DNA
rRNA
tRNA

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Translation and Regulation
Negative regulation of protein synthesis is accomplished by

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

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Translation and Regulation
Which phage always carries a small piece of E.coli genome?

Mu
T4
T3
Lambda

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

RNA polymerase
DNA polymerase
Peptidyl transferase
DNA ligase

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Translation and Regulation
What is the action of tetracycline in prokaryotes?

Not known with certainity
It blocks the binding of amino-acyl tRNA to the A site of ribosomes
It blocks translocation reaction on ribosomes
It blocks peptidyl transferase reaction on ribosomes

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Translation and Regulation
Which of the following three codons translate as serine (Ser)?

AGU
CGA
AUG
CAU

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