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Genetic Regulation Prokaryotes

Genetic Regulation Prokaryotes
Catabolite activating protein exerts __________ control on transcription of the lac operon genes.

may be positive or negative
negative
none of these
positive

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

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

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Genetic Regulation Prokaryotes
Tubulin is regulated by

binding of tubulin to DNA
binding of tubulin to the tubulin translational product
binding of tubulin to tubulin mRNA
splicing of the tubulin transcript

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

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

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Genetic Regulation Prokaryotes
The lac operon is transcribed in which segments?

1
2
3
4

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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?

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

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