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What is the significance of the lac operon in E. coli?

Practice Questions

Q1
What is the significance of the lac operon in E. coli?
  1. It regulates amino acid synthesis
  2. It controls lactose metabolism
  3. It is involved in DNA repair
  4. It facilitates cell division

Questions & Step-by-Step Solutions

What is the significance of the lac operon in E. coli?
  • Step 1: Understand that E. coli is a type of bacteria.
  • Step 2: Know that E. coli can use different sugars for energy, including lactose.
  • Step 3: Learn that lactose is a sugar found in milk.
  • Step 4: Recognize that the lac operon is a group of genes in E. coli.
  • Step 5: Understand that these genes help E. coli break down lactose.
  • Step 6: Realize that the lac operon turns on when lactose is present.
  • Step 7: Know that this allows E. coli to use lactose as an energy source when needed.
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