A plasmid is extrachromosomal, circular DNA with an origin of replication (allows replication) and often contains genes for antibiotic resistance, metabolism of unusual molecules (e.g., Pseudomonas) or virulence.

a. true
b. false


Answer: a. true

Biology & Microbiology

You might also like to view...

Which of the following is NOT a possible restriction enzyme recognition site?

A: 5'GAAATTTC-3' B: 5'ACGTACGT-3' C: 5'AATTTTAA-3' D: 5'AAAATTTT-3' E: All of the above are possible recognition sites.

Biology & Microbiology

A population with five males and five females is an example of 

A. age distribution. B. gene flow. C. sex ratio. D. reproductive capacity.

Biology & Microbiology

Which of the following devices is used for PCR?

A) an electrophoresis chamber B) a gene gun C) a DNA sequencer D) a thermocycler E) a nucleic acid synthesis machine

Biology & Microbiology

Radiometric dating works best with

a. sedimentary rocks. b. limestone. c. metamorphic rock. d. volcanic rocks. e. meteorites.

Biology & Microbiology