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Transcription and Regulation

Transcription and Regulation
The nucleons of eukaryotic cell has

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

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

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

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Transcription and Regulation
RNA polymerase holoenzyme initiates transcription which involves

recognition of the -10 sequence only
recognition of the -10 sequence and -35 sequence
recognition of the -35 sequence only
None of these

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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 RNA polymerases that transcribe bacterial DNA are

interchangable with DNA polymerases
highly glycosylated in their active forms
multisubunit enzymes
only active inside the cell

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Transcription and Regulation
Transcription factors are

TATA boxes
CATT boxes
promoters
proteins which bind to DNA and regulate transcription

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