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Transcription and Regulation

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

enhancers
start codons
promoters
transcription factors

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

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

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

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

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Transcription and Regulation
The binding of lac repressor to DNA could be considered to be analogous to

mixed-type inhibition of an enzyme
competitive inhibition of an enzyme
allosteric effects in enzyme regulation
uncompetitive inhibition of an enzyme

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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
a poly adenylation signal is added
both (a) and (b)

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

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