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TRANSCRIPTION AND REGULATION

Transcription and Regulation
The complex of RNA polymerase, DNA template and new RNA transcript is called

none of these
transcription bubble
replication bubble
a translation bubble

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Transcription and Regulation
RNA polymerase in prokaryotes has a removable

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

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Transcription and Regulation
Promoters for tRNAs are located

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

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

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

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

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

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