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Genetic Regulation Prokaryotes

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

positive
negative
none of these
may be positive or negative

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Genetic Regulation Prokaryotes
Tubulin is regulated by

binding of tubulin to the tubulin translational product
binding of tubulin to DNA
binding of tubulin to tubulin mRNA
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?

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

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

2
3
1
4

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

P
O
I
none of these

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Genetic Regulation Prokaryotes
Sex determination in Drosophila involves

gene amplification
none of these
alternate splicing
methylation

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