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Genetic Regulation Prokaryotes

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

may be positive or negative
positive
negative
none of these

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Genetic Regulation Prokaryotes
Sex hormones activate transcription of specific genes by

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

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Genetic Regulation Prokaryotes
Genes which need to be coordinately regulated but are not in operons may be regulated by

CAAT regions
TATA boxes
common transcription factor binding domains
GC regions

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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 tryptophan
bound to both DNA and tryptophan
bound to DNA

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Genetic Regulation Prokaryotes
DNA is methylated at

CG sequences
AC sequences
CAAT sequences
TATA sequences

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Genetic Regulation Prokaryotes
What are genes?

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

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