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Transcription and Regulation

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

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

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

transcription factors
enhancers
start codons
promoters

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Transcription and Regulation
Transcription by E. coli polymerase occurs in

three phases known as initiation, elongation and termination
four phases known as initiation, propagation, elongation and termination
two phases known as initiation and termination
None of these

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Transcription and Regulation
Immediately after transcription

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

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Transcription and Regulation
The RNA polymerases that transcribe bacterial DNA are

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

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Transcription and Regulation
Transcription factors are

CATT boxes
TATA boxes
proteins which bind to DNA and regulate transcription
promoters

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