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Transcription and Regulation

Transcription and Regulation
Enhancers are regions that

are adjacent to the TATA box
are CAT box binding proteins
bind RNA polymerase
modulate transcription

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Transcription and Regulation
Upstream regions which are essential for correct transcription are called

transcription factors
promoters
enhancers
start codons

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Transcription and Regulation
Transcription begins

upstream from the start codon
at the start codon
none of these
downstream from the start codon

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Transcription and Regulation
Promoters for tRNAs are located

both (a) and (b)
none of these
upstream from the start codon
downstream from the start codon

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Transcription and Regulation
The closed complex at bacterial promoters is

in equilibrium with free RNA polymerase and the promoter
bound more tightly when repressors are present
not affected by promoter mutations
not affected by activator proteins

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Transcription and Regulation
The RNA polymerases that transcribe bacterial DNA are

only active inside the cell
interchangable with DNA polymerases
multisubunit enzymes
highly glycosylated in their active forms

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