Multiple choice

Which of the following is not true for a plasmid?

  1. It is the extrachromosomal DNA in bacteria.

  2. It is not an integral part but inert genetic material.

  3. Host chromosome can be integrated with the plasmid.

  4. Transfer of plasmid can be done from cell to cell without killing the host.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A plasmid refers to a small DNA molecule that is physically separate from, as well as can replicate independently of, chromosomal DNA within a cell. Plasmids are most frequently found as small circular, double-stranded DNA molecules in bacteria. They are sometimes present in archaea and eukaryotic organisms.