Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Biotechnology -Principles and Processes

Question:

Which of the following options correctly identifies the components represented in the diagram of vector pBR322?

Options:

ampR, tetR–antibiotic resistance genes

 

Hind III, Eco RI–selectable markers

rop–reduced osmotic pressure

ori–original restriction enzymes

Correct Answer:

ampR, tetR–antibiotic resistance genes

 

Explanation:

E. coli cloning vector pBR322 showing restriction sites (Hind III, EcoR I, BamH I, 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