MCQ
What does bacterial genome contain?
- ADouble stranded circular DNA
- BDouble stranded linear DNA
- CSingle stranded circular DNA
- DSingle stranded DNA
Explanation:
The bacterial genome contains double – stranded circular DNA. It also contains short circular DNA called a plasmid.
It is a self – replicating unit that mainly helps in transformation.

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$R$ : The linking of antibiotic resistance gene with plasmid vector became possible by enzyme $DNA$ ligase.