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Transcription and Regulation

Transcription and Regulation
Transcription results in

complementary DNA
Okazaki fragments
messenger RNA
an amino acid chain

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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 activator proteins
not affected by promoter mutations

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Transcription and Regulation
RNA polymerase in prokaryotes has a removable

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

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Transcription and Regulation
Immediately after transcription

a poly adenylation signal is added
a methylated guanine cap is added to the 31 end of the transcript
both (a) and (b)
a methylated guanine cap is added to the 51 end of the transcript

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Transcription and Regulation
The regions of a gene located at -10 and -35, with respect to the start of transcription, are termed

Shine Dalgarno sequences.
start codons.
oriC regions.
promoters.

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Transcription and Regulation
Enhancers are regions that

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

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