The presence of a specific plasmid in a bacterial cell may be determined if the plasmid .
A) Is exceptionally large
B) Is an expression vector
C) Contains pieces of a viral genome
D) Contains a selectable marker
E) None of the answers are correct

Question

Quizplus · Accepted Answer

A selectable marker allows for the identification of cells that have successfully taken up the plasmid, as it confers resistance to an antibiotic or another selection agent.

The Presence of a Specific Plasmid in a Bacterial Cell