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Transcription and Regulation

Transcription and Regulation
RNA polymerase in prokaryotes has a removable

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

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Transcription and Regulation
In both eukaryotes and prokaryotes, a promoter region that is rich in AT bases is called as

Shine Dalgarno region
TATA box
CATT
SV40 region

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Transcription and Regulation
Transcription by E. coli polymerase occurs in

two phases known as initiation and termination
four phases known as initiation, propagation, elongation and termination
None of these
three phases known as initiation, elongation and termination

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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
In eukaryotes, there are three different RNA polymerases. The RNA polymerase responsible for transcription of mRNA is

RNA polymerase I
RNA polymerase III
none of these
RNA polymerase II

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

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

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