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Transcription and Regulation

Transcription and Regulation
Which of the following is necessary for transcription to occur?

DNA polymerase
Both DNA & RNA polymerase
RNA polymerase
DNA molecule

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Transcription and Regulation
The binding of lac repressor to DNA could be considered to be analogous to

allosteric effects in enzyme regulation
mixed-type inhibition of an enzyme
uncompetitive inhibition of an enzyme
competitive inhibition of an enzyme

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Transcription and Regulation
Transcription results in

complementary DNA
messenger RNA
Okazaki fragments
an amino acid chain

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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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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.
start codons.
oriC regions.

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Transcription and Regulation
Transcription by E. coli polymerase occurs in

three phases known as initiation, elongation and termination
two phases known as initiation and termination
four phases known as initiation, propagation, elongation and termination
None of these

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