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Transcription and Regulation

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

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

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Transcription and Regulation
Transcription of each set of rRNA genes by RNA polymerasel produces

a single 45S rRNA precursor molecule
a single 28S rRNA precursor molecule
a single 5S rRNA precursor molecule
a single 18S rRNA precursor molecule

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Transcription and Regulation
Transcription begins

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

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

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Transcription and Regulation
Immediately after transcription

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

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Transcription and Regulation
RNA is synthesized on a DNA template in a process called __________ , which utilizes the enzyme __________

replication, DNA polymerase
transcription, DNA polymerase
translation, RNA polymerase
transcription, RNA polymerase

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