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Transcription and Regulation

Transcription and Regulation
Enhancers are regions that

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

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Transcription and Regulation
In prokaryotes, transcription is

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

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Transcription and Regulation
RNA polymerase in prokaryotes has a removable

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

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

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

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Transcription and Regulation
RNA polymerase holoenzyme initiates transcription which involves

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

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Transcription and Regulation
Immediately after transcription

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

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