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Transcription and Regulation

Transcription and Regulation
The nucleons of eukaryotic cell has

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

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Transcription and Regulation
Promoters for tRNAs are located

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

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

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

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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 III
RNA polymerase II
RNA polymerase I
none of these

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Transcription and Regulation
RNA polymerase in prokaryotes has a removable

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

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Transcription and Regulation
Transcription begins

upstream from the start codon
downstream from the start codon
at the start codon
none of these

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