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Genetic Regulation Prokaryotes

Genetic Regulation Prokaryotes
What are genes?

All of these
A fragment of DNA
The functional unit of inheritance
A portion of a chromosome

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Genetic Regulation Prokaryotes
DNA is methylated at

CAAT sequences
AC sequences
TATA sequences
CG sequences

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Genetic Regulation Prokaryotes
Which of the following is not part of the lac operon?

I
P
O
none of these

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Genetic Regulation Prokaryotes
The first protein complex to bind to the TATA box is

transcription factor IIB
all of these
transcription factor IID
transcription factor IIA

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Genetic Regulation Prokaryotes
A mutation in the tip binding site of the repressor would result in

constitutive trp operon expression
None of these
inducible trp operon expression
no operon expression

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Genetic Regulation Prokaryotes
In the presence of high levels of tryptophan

None of these
attenuator terminates transcription
attenuator allows transcription of trp structural genes
attenuator propogates transcription

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