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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.
oriC regions.
promoters.
start codons.

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Transcription and Regulation
In eukaryotes, there are three different RNA polymerases. The RNA polymerase responsible for transcription of mRNA is

RNA polymerase II
none of these
RNA polymerase III
RNA polymerase I

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

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

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Transcription and Regulation
The RNA polymerases that transcribe bacterial DNA are

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

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Transcription and Regulation
Promoters for tRNAs are located

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

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Transcription and Regulation
RNA polymerase in prokaryotes has a removable

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

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