Genetic Regulation Prokaryotes
Enhancers differ from promoters in that

they are adjacent to the start codon
their orientation can be inverted without effect
they initiate transcription
they are restricted to a specific gene

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Genetic Regulation Prokaryotes
Why are several structural genes regulated as a unit in bacteria?

None of these
It allows coordinating regulation of genes with a common function
An accident of evolution
The bacteria chromosome is so small; many different genes must be controlled by the same promoter

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