The following form of circular double stranded, self-replicating DNA molecules present in many bacteria in addition to the chromosomes are not essential for bacterial growth and metabolism:
Correct answer: B. Plasmids
- A. Nucleoid
- B. Plasmids
- C. Mesosomes
- D. Nuclear region
Explanation
Plasmids are small, circular DNA molecules that exist independently of the chromosome and carry non-essential but often beneficial genes, such as antibiotic resistance.
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