A plasmid is a
A) small segment of DNA that is often isolated from virus chromosomes for cloning purposes.
B) large linear segment of DNA that is often isolated from bacterial chromosomes for cloning purposes.
C) small circular segment of DNA in bacteria that is linked by hydrogen bonds to the main bacterial chromosome.
D) large circular segment of DNA in bacteria that is completely separated with the chromosome.
E) small circular segment of DNA in bacteria that is completely separated from the chromosome.

Question

Quizplus · Accepted Answer

A plasmid is a small circular segment of DNA in bacteria that is completely separated from the chromosome. Plasmids can exist independently and replicate separately from the bacterial chromosome. They are often used in cloning and genetic engineering due to their ability to carry foreign genes and transfer them between bacteria.

A Plasmid Is a