All of the following are true concerning plasmids
EXCEPT that they
a. are self-reproducing circular molecules of DNA.
b. are sites for inserting genes for amplification.
c. may be transferred between different species of
bacteria.
d. may confer the ability to donate genetic material
when bacteria conjugate.
e. are usually essential in bacteria.
Answer: e
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Which of the following is an example of acclimatization?
A. sweating while working out B. a dog moving into the shade C. a dog panting on a hot day D. young penguins huddling together to stay warm E. a duck growing thick down underfeathers in fall
You place ant traps around the house. You notice after a period of time that the ants do not enter the
traps and the population size is greater than it was originally. This experience would best be explainedby:a. classical conditioning. b. habituation. c. proximate cause. d. innate behavior. e. operant conditioning.
Which of the following is NOT a stage in transcription?
A) elongation B) termination C) translocation D) Initiation
Which of the following is NOT a way medical professionals can combat and delay the evolution of antibiotic resistance bacteria?
A. Combining certain drugs safely to treat infections B. Encouraging patients to take mild doses of antibiotics for small or chronic illness over longer periods of time C. Encourage patients to take the entire regiment of their antibiotic prescription, not just until they feel better D. Cutting back on preventative antibiotic treatments in food stores such as crops and livestock E. Using antibiotics to treat only bacterial infections, not viral infections