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GENETIC REGULATION PROKARYOTES

Genetic Regulation Prokaryotes
Sex hormones activate transcription of specific genes by

binding to DNA promoter region
binding to RNA polymerase
binding to a transcription factor
binding to DNA enhancer region

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

4
1
3
2

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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 DNA
bound to both DNA and tryptophan
bound to tryptophan

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

negative
positive
none of these
may be positive or negative

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Genetic Regulation Prokaryotes
DNA is methylated at

TATA sequences
CG sequences
AC sequences
CAAT sequences

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