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Genetic Regulation Prokaryotes

Genetic Regulation Prokaryotes
What are genes?

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

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Genetic Regulation Prokaryotes
Enhancers differ from promoters in that

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

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

tachykinins
tubulin
leucine zippers
DNA methylation

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

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

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Genetic Regulation Prokaryotes
Which of the following is not a transcription factor?

Leucine zipper proteins
Zinc finger proteins
Steroid hormones
Helix-turn-helix proteins

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

P
I
none of these
O

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