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Transcription and Regulation

Transcription and Regulation
RNA polymerase in prokaryotes has a removable

both (a) and (b)
beta subunit
sigma subunit
alpha subunit

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Transcription and Regulation
Transcription results in

complementary DNA
Okazaki fragments
an amino acid chain
messenger RNA

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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
The closed complex at bacterial promoters is

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

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Transcription and Regulation
RNA polymerase holoenzyme initiates transcription which involves

None of these
recognition of the -35 sequence only
recognition of the -10 sequence only
recognition of the -10 sequence and -35 sequence

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Transcription and Regulation
Enhancers are regions that

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

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