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

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

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Translation and Regulation
The development of global regulatory systems in prokaryotes

regulates many genes under varying environmental conditions
determines the exact location of the cell on the globe
aids in DNA replication
determines the exact location of the replication site

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Translation and Regulation
A quorum sensing system

detects a signal from the external environment
senses a compound produced by the bacterium itself
consists of a sensor component that phosphorylates a regulatory protein
controls the activity of ribosomes directly

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