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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

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

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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
mixed-type inhibition of an enzyme
uncompetitive inhibition of an enzyme
competitive inhibition of an enzyme

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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 poly A sequence
terminated by a start codon

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Transcription and Regulation
Immediately after transcription

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
both (a) and (b)

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

promoters
transcription factors
enhancers
start codons

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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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