Skip to content
MathsGenie logo
Open app

Course home

  1. A Level
  3. Biology OCR A
  5. Question bank

Genetics and evolution

EasyMediumHard
12345678910111213141516171819202122232425262728
Question 1

Lactose metabolism in E. coli is controlled by the lac operon.

Which of the structures or molecules associated with the lac operon consist of polypeptides?

  1. The repressor protein
  2. The promoter
  3. The β\betaβ-galactosidase enzyme

1, 2 and 3

Only 1 and 3

Only 1 and 2

Only 2 and 3

Genetics and evolution Questions

  1. A Level
  2. /Biology
  3. /Genetics and evolution