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Transcription and Regulation

Transcription and Regulation
The nucleons of eukaryotic cell has

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

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Transcription and Regulation
Each tRNA molecule has a cloverleaf secondary structure consisting of

two stem loops
four stem loops
either (a) or (b)
three stem loops

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

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

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

Both DNA & RNA polymerase
DNA molecule
RNA polymerase
DNA polymerase

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Transcription and Regulation
In prokaryotes, transcription is

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

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Transcription and Regulation
Immediately after transcription

a methylated guanine cap is added to the 51 end of the transcript
a poly adenylation signal is added
both (a) and (b)
a methylated guanine cap is added to the 31 end of the transcript

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