Principles of Gene Regulation MCQ

Test your knowledge with important Principles of Gene Regulation MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Principles of Gene Regulation MCQs at Bissoy

• Which out of the following is not an example of an inducible operon?
  ক

  Lactose operon

  খ

  Galactose operon

  গ

  Maltose operon

  ঘ

  Tryptophan operon
• Which of the following is not required for the expression of genes in the lactose operon?
  ক

  lacl gene product

  খ

  cAMP

  গ

  Allolactose

  ঘ

  Adenylate cyclase
• If lactose and glucose are provided in the growth medium of a culture of E. coli ____________
  ক

  Lactose operon is not transcribed

  খ

  Lactose metabolism is favored

  গ

  Both lactose and glucose are metabolized at same rate

  ঘ

  Adenylate cyclase is activated
• The lac repressor has which of the following DNA-binding motif?
  ক

  Helix-turn-helix

  খ

  Zinc finger

  গ

  Homeodomain

  ঘ

  Leucine zipper
• Lac repressor dissociates from its operator when the repressor binds to ____________
  ক

  Heat shock module

  খ

  Promoter

  গ

  Inducer

  ঘ

  Catabolite activator site
• Where does a repressor bind an operon?
  ক

  Operator

  খ

  Promoter

  গ

  Inducer

  ঘ

  Catabolite activator site
• The lactose repressor is encoded by ____________
  ক

  Lac-l

  খ

  Lac-A

  গ

  Lac-Y

  ঘ

  Lac-Z
• Lactose utilization by E. coli requires ____________
  ক

  Lac-Z

  খ

  Lac-A

  গ

  Lac-Y

  ঘ

  Lac-l
• Which of the following is not an example of housekeeping genes?
  ক

  RNA polymerase

  খ

  r-RNA genes

  গ

  Beta galactosidase

  ঘ

  Enzymes required for basic metabolic pathways common to most cells