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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

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

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Transcription and Regulation
Transcription by E. coli polymerase occurs in

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

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Transcription and Regulation
Enhancers are regions that

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

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

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

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Transcription and Regulation
RNA is synthesized on a DNA template in a process called __________ , which utilizes the enzyme __________

transcription, RNA polymerase
transcription, DNA polymerase
translation, RNA polymerase
replication, DNA polymerase

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Transcription and Regulation
Promoters for tRNAs are located

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

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