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Transcription and Regulation

Transcription and Regulation
The complex of RNA polymerase, DNA template and new RNA transcript is called

a translation bubble
none of these
transcription bubble
replication bubble

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Transcription and Regulation
The RNA polymerases that transcribe bacterial DNA are

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

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

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

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

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

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Transcription and Regulation
Enhancers are regions that

modulate transcription
are adjacent to the TATA box
bind RNA polymerase
are CAT box binding proteins

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Transcription and Regulation
In prokaryotes, transcription is

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

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