Which of the following characteristic of the plasmid make it is a suitable vector in genetic engineering ? a. It is resistant to antibodies b. It is resistant to restriction enzyme c. It has ability to carry foreign gene d. It has ability to cause infection in the host
Option C. Plasmids are extra-chromosomal, self-replicating, usually circular, double-stranded DNA molecules found naturally in many bacteria and also in some yeasts. Plasmids are usually not essential for normal cell growth and division, they often confer some traits to the host organism e.g., resistance to certain antibiotics. The plasmid that is used as a carrier for transferring a fragment of foreign DNA into a suitable host is called vehicle DNA or cloning vector or gene carrier.
