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Transcription and Regulation

Transcription and Regulation
Enhancers are regions that

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

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Transcription and Regulation
Transcription begins

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

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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 I
RNA polymerase III
RNA polymerase II
none of these

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

start codons
enhancers
transcription factors
promoters

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

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

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Transcription and Regulation
In both eukaryotes and prokaryotes, a promoter region that is rich in AT bases is called as

Shine Dalgarno region
SV40 region
TATA box
CATT

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