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Transcription and Regulation

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

RNA polymerase
DNA polymerase
DNA molecule
Both DNA & RNA polymerase

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Transcription and Regulation
The closed complex at bacterial promoters is

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

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Transcription and Regulation
Rho-dependent termination of transcription in E. coli

both (a) and (b)
requires ATP
requires about 50 nucleotides of uncomplexed mRNA
removes mRNA and holoenzyme from the DNA

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Transcription and Regulation
Enhancers are regions that

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

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Transcription and Regulation
RNA polymerase in prokaryotes has a removable

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

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Transcription and Regulation
Transcription results in

Okazaki fragments
complementary DNA
an amino acid chain
messenger RNA

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