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Genetic Regulation Prokaryotes

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

4
1
2
3

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Genetic Regulation Prokaryotes
Sex lethal (sxl) in Drosophila is transcribed when

the X autosome balance is 1 or greater
the X autosome balance is less than 0.5
the X autosome balance equals 0.5
None of these

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

DNA methylation
tubulin
leucine zippers
tachykinins

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Genetic Regulation Prokaryotes
Enhancers differ from promoters in that

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

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

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

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Genetic Regulation Prokaryotes
Sex determination in Drosophila involves

gene amplification
alternate splicing
methylation
none of these

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