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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

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

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Transcription and Regulation
RNA polymerase holoenzyme initiates transcription which involves

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

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Transcription and Regulation
Transcription by E. coli polymerase occurs in

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

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Transcription and Regulation
Transcription of each set of rRNA genes by RNA polymerasel produces

a single 5S rRNA precursor molecule
a single 28S rRNA precursor molecule
a single 45S rRNA precursor molecule
a single 18S rRNA precursor molecule

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Transcription and Regulation
Enhancers are regions that

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

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Transcription and Regulation
Promoters for tRNAs are located

both (a) and (b)
upstream from the start codon
none of these
downstream from the start codon

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