Multiple choice

Operon unit consists of

  1. Regulator gene
  2. Structural gene
  3. Operator gene
  4. Promoter gene

  1. Only 1 and 2

  2. Only 1, 2 and 3

  3. Only 1, 3 and 4

  4. Only 2, 3 and 4

  5. All of these
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The operon consists of a series of structural genes, a segment of DNA called operator, adjacent to the structural and next to the operator and an additional DNA segment called the promoter. Elsewhere on the chromosome there is a segment of DNA called regulator gene.

Keep practicing — related questions