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Genetic Regulation Prokaryotes

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

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

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

2
4
1
3

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Genetic Regulation Prokaryotes
Tubulin is regulated by

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

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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
Early genes will not be translated
Middle genes will not be transcribed
The bacterial host will lyse immediately

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

positive
none of these
may be positive or negative
negative

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Genetic Regulation Prokaryotes
Enhancers differ from promoters in that

they are restricted to a specific gene
their orientation can be inverted without effect
they are adjacent to the start codon
they initiate transcription

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