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Genetic Regulation Prokaryotes

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

2
3
1
4

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

negative
none of these
may be positive or negative
positive

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Genetic Regulation Prokaryotes
In the presence of high levels of tryptophan

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

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Genetic Regulation Prokaryotes
Alternate splicing of RNA transcripts is a mechanism to regulate

tubulin
leucine zippers
DNA methylation
tachykinins

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Genetic Regulation Prokaryotes
What are genes?

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

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Genetic Regulation Prokaryotes
In the presence of tryptophan in the cell, the repressor is __________

bound to DNA
bound to tryptophan
bound to both DNA and tryptophan
bound to neither tryptophan nor DNA

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