Which of the following is true regarding transformed cells that are plated on growth media containing ampicillin?
A. Each colony began with one antibiotic resistant cell.
B. All cells in a single colony are resistant to the antibiotic ampicillin.
C. Only the founder cell of a single colony is resistant to the antibiotic ampicillin.
D. Cells that did not take up the plasmid will survive on the medium.
E. Each colony began with one antibiotic resistant cell and all cells in the colony are resistant to the antibiotic ampicillin.
E. Each colony began with one antibiotic resistant cell and all cells in the colony are resistant to the antibiotic ampicillin.
You might also like to view...
A benign tumor (select all correct choices):
A. is a mass of rapidly dividing cells. B. has clear boundaries encapsulating it and is not invading nearby tissues. C. rarely has life-threatening effects unless it is interfering with the function of a vital organ. D. has defects in the regulation of cell division.
Isotopes are different forms of the same element that
A. differ in their number of neutrons. B. differ in their number of protons. C. are all produced artificially. D. cannot form covalent bonds. E. cannot form ions.
Anthrax is not routinely diagnosed in the U.S. because
A. infection is generally only seen in late-stage AIDS patients. B. infections are usually asymptomatic. C. it is a rare infection. D. health care workers haven't been trained to detect it.
The overuse of antibiotics has led to a form of antibiotic resistant tuberculosis. This has occurred as a result of:
a. directional selection within the bacterial population. b. stabilizing selection within the bacterial population. c. disruptive selection within the bacterial population. d. balanced polymorphism within the bacterial population. e. a heterozygote advantage within the bacterial population.