Question

which best describes a plasmid?

Answer 1

A genetic structure in a cell that can replicate independently of the chromosomes, typically a small circular DNA strand in the cytoplasm of a bacterium or protozoan. Plasmids are much used in the laboratory manipulation of genes.

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Answer 2

A small single circular extra-chromosomal DNA molecule which can self-replicate.

Explanation:

• Plasmids are the extrachromosomal small circular DNA molecule that can self replicate in the cell. Plasmids are mainly found in bacteria but are also found in archaea and some eukaryotic cells.
• Plasmids play an important role in providing antibiotic resistance to bacteria because in many antibiotic-resistant bacteria the antibiotic resistance property is coded by the plasmid gene.
• Bacteria can transfer their plasmid by conjugation method to other bacteria.

Learn more about plasmid:

• https://brainly.in/question/9026090