What are plasmids?

A. Small, circular RNA molecules that contain many genes but that cannot be passed on to other bacteria
B. Small, circular DNA molecules that contain just a few genes and that can be passed on to other bacteria
C. Small, circular RNA molecules that contain just a few genes and that can be passed on to other bacteria
D. Small, circular DNA molecules that contain just a few genes but that cannot be passed on to other bacteria


Answer: B

Biology & Microbiology

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