Genetic Regulation Prokaryotes In the presence of tryptophan in the cell, the repressor is __________ bound to tryptophan bound to both DNA and tryptophan bound to neither tryptophan nor DNA bound to DNA bound to tryptophan bound to both DNA and tryptophan bound to neither tryptophan nor DNA bound to DNA ANSWER DOWNLOAD EXAMIANS APP
Genetic Regulation Prokaryotes Catabolite activating protein exerts __________ control on transcription of the lac operon genes. none of these negative positive may be positive or negative none of these negative positive may be positive or negative ANSWER DOWNLOAD EXAMIANS APP
Genetic Regulation Prokaryotes DNA is methylated at TATA sequences CG sequences AC sequences CAAT sequences TATA sequences CG sequences AC sequences CAAT sequences ANSWER DOWNLOAD EXAMIANS APP
Genetic Regulation Prokaryotes In the presence of high levels of tryptophan None of these attenuator allows transcription of trp structural genes attenuator terminates transcription attenuator propogates transcription None of these attenuator allows transcription of trp structural genes attenuator terminates transcription attenuator propogates transcription ANSWER DOWNLOAD EXAMIANS APP
Genetic Regulation Prokaryotes Which of the following occur in the presence of glucose? Binding of CAP-cAMP complex to the promoter area decreases cAMP increases lac Z gene expression is increased None of these Binding of CAP-cAMP complex to the promoter area decreases cAMP increases lac Z gene expression is increased None of these ANSWER DOWNLOAD EXAMIANS APP
Genetic Regulation Prokaryotes Why are several structural genes regulated as a unit in bacteria? It allows coordinating regulation of genes with a common function The bacteria chromosome is so small; many different genes must be controlled by the same promoter An accident of evolution None of these It allows coordinating regulation of genes with a common function The bacteria chromosome is so small; many different genes must be controlled by the same promoter An accident of evolution None of these ANSWER DOWNLOAD EXAMIANS APP
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