Genetic Regulation Prokaryotes Catabolite activating protein exerts __________ control on transcription of the lac operon genes. may be positive or negative positive none of these negative may be positive or negative positive none of these negative ANSWER DOWNLOAD EXAMIANS APP
Genetic Regulation Prokaryotes Why are several structural genes regulated as a unit in bacteria? An accident of evolution None of these The bacteria chromosome is so small; many different genes must be controlled by the same promoter It allows coordinating regulation of genes with a common function An accident of evolution None of these The bacteria chromosome is so small; many different genes must be controlled by the same promoter It allows coordinating regulation of genes with a common function ANSWER DOWNLOAD EXAMIANS APP
Genetic Regulation Prokaryotes Genes which need to be coordinately regulated but are not in operons may be regulated by GC regions TATA boxes CAAT regions common transcription factor binding domains GC regions TATA boxes CAAT regions common transcription factor binding domains ANSWER DOWNLOAD EXAMIANS APP
Genetic Regulation Prokaryotes Which of the following is not a transcription factor? Zinc finger proteins Leucine zipper proteins Helix-turn-helix proteins Steroid hormones Zinc finger proteins Leucine zipper proteins Helix-turn-helix proteins Steroid hormones ANSWER DOWNLOAD EXAMIANS APP
Genetic Regulation Prokaryotes In the presence of high levels of tryptophan None of these attenuator terminates transcription attenuator propogates transcription attenuator allows transcription of trp structural genes None of these attenuator terminates transcription attenuator propogates transcription attenuator allows transcription of trp structural genes ANSWER DOWNLOAD EXAMIANS APP
Genetic Regulation Prokaryotes Enhancers differ from promoters in that they are restricted to a specific gene their orientation can be inverted without effect they initiate transcription they are adjacent to the start codon they are restricted to a specific gene their orientation can be inverted without effect they initiate transcription they are adjacent to the start codon ANSWER DOWNLOAD EXAMIANS APP
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