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Transcription and Regulation

Transcription and Regulation
RNA polymerase in prokaryotes has a removable

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

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Transcription and Regulation
In prokaryotes, transcription is

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

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Transcription and Regulation
Immediately after transcription

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

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Transcription and Regulation
RNA polymerase holoenzyme initiates transcription which involves

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

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

enhancers
start codons
transcription factors
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

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

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