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Genetic Regulation Prokaryotes

Genetic Regulation Prokaryotes
Sex determination in Drosophila involves

none of these
methylation
gene amplification
alternate splicing

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

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

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

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

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Genetic Regulation Prokaryotes
DNA is methylated at

TATA sequences
CG sequences
CAAT sequences
AC sequences

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

3
4
2
1

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Genetic Regulation Prokaryotes
Which of the following occur in the presence of glucose?

Binding of CAP-cAMP complex to the promoter area decreases
lac Z gene expression is increased
None of these
cAMP increases

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