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Transcription and Regulation

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

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

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Transcription and Regulation
Upstream regions which are essential for correct transcription are called

promoters
enhancers
start codons
transcription factors

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Transcription and Regulation
In prokaryotes, transcription is

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

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Transcription and Regulation
The regions of a gene located at -10 and -35, with respect to the start of transcription, are termed

Shine Dalgarno sequences.
promoters.
oriC regions.
start codons.

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Transcription and Regulation
Promoters for tRNAs are located

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

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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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