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Genetic Regulation Prokaryotes

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
The lac operon is transcribed in which segments?

2
1
4
3

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Genetic Regulation Prokaryotes
A frameshift mutation occurs in the sigma subunit gene transcribed as part of SPOl early genes. What will be the immediate result?

Middle genes will not be transcribed
Infection will proceed as usual
Early genes will not be translated
The bacterial host will lyse immediately

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Genetic Regulation Prokaryotes
Which of the following occur in the presence of glucose?

lac Z gene expression is increased
cAMP increases
None of these
Binding of CAP-cAMP complex to the promoter area decreases

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Genetic Regulation Prokaryotes
The lac operon is translated into __________ proteins.

4
3
2
1

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Genetic Regulation Prokaryotes
DNA is methylated at

AC sequences
CAAT sequences
CG sequences
TATA sequences

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