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Question

In bacteria, plasmid is

A
Extrachromosomal material
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B
Main DNA
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C
Non-functional DNA
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D
Repetitive gene
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Solution

The correct option is C Extrachromosomal material
A plasmid is an independent, circular, self-replicating DNA molecule that carries only a few genes. The number of plasmids in a cell generally remains constant from generation to generation. Plasmids are semi-autonomous molecules and exist in cells as extrachromosomal genomes, although some plasmids can be inserted into a bacterial chromosome, where they become a permanent part of the bacterial genome.

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