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
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Radiometric dating works best with
a. sedimentary rocks. b. limestone. c. metamorphic rock. d. volcanic rocks. e. meteorites.
Biology & Microbiology
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