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Transcription and Regulation

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
RNA polymerase in prokaryotes has a removable

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

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

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

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Transcription and Regulation
The nucleons of eukaryotic cell has

RNA polymerase II
RNA polymerase III
all of these
RNA polymerase I

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Transcription and Regulation
Promoters for tRNAs are located

both (a) and (b)
downstream from the start codon
upstream from the start codon
none of these

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Transcription and Regulation
The regions of a gene located at -10 and -35, with respect to the start of transcription, are termed

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

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