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Transcription and Regulation

Transcription and Regulation
RNA polymerase in prokaryotes has a removable

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

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Transcription and Regulation
Transcription results in

an amino acid chain
complementary DNA
Okazaki fragments
messenger RNA

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Transcription and Regulation
In prokaryotes, transcription is

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

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Transcription and Regulation
Which of the following is necessary for transcription to occur?

DNA molecule
Both DNA & RNA polymerase
RNA polymerase
DNA polymerase

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Transcription and Regulation
The closed complex at bacterial promoters is

in equilibrium with free RNA polymerase and the promoter
not affected by promoter mutations
bound more tightly when repressors are present
not affected by activator proteins

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Transcription and Regulation
Enhancers are regions that

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

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