Home Biology Biotechnology Principles and Processes NCERT Antibiotic resistance gene present of Bam HI…
Biology Biotechnology Principles and Processes NCERT Single Correct MCQ
Published on: August 11, 2026

Antibiotic resistance gene present of Bam HI site of a E. coli cloning vector is

A
Ampicillin resistance
B
Tetracycline resistance
C
Chloramphenicol resistance
D
Kanamycin resistance

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The correct answer is:
B

In the cloning vector pBR322, the BamHI restriction site is located within the tetracycline resistance (tetᴿ) gene. Insertion of foreign DNA at this site inactivates tetracycline resistance.

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