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Transcription and Regulation

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
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
The closed complex at bacterial promoters is

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

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Transcription and Regulation
In prokaryotes, transcription is

terminated by a poly A sequence
terminated by a start codon
terminated by a protein called rho
terminated by the stop codon

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Transcription and Regulation
In both eukaryotes and prokaryotes, a promoter region that is rich in AT bases is called as

Shine Dalgarno region
TATA box
CATT
SV40 region

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Transcription and Regulation
RNA polymerase in prokaryotes has a removable

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

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