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Transcription and Regulation

Transcription and Regulation
Enhancers are regions that

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

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Transcription and Regulation
Rho-dependent termination of transcription in E. coli

removes mRNA and holoenzyme from the DNA
requires ATP
both (a) and (b)
requires about 50 nucleotides of uncomplexed mRNA

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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

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

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Transcription and Regulation
Transcription results in

messenger RNA
an amino acid chain
complementary DNA
Okazaki fragments

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

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

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

promoters
enhancers
transcription factors
start codons

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