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In E.coli cloning vector pBR322, the number of selectable marker is/are

Options

  1. A4
  2. B1
  3. C2
  4. D3

Correct answer

C. 2

Step-by-step solution

The selectable markers are of two types which are amp^R and tet^R E. coli cloning vector pBR322 showing restriction sites (Hind III, EcoR I, BamHI, Sal I, Pvu II, Pst I, Cla I), ori and antibiotic resistance genes (ampR and tetR ). rop codes for the proteins involved in the replication of the plasmid.

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