The development of virulent, toxin-producing bacterial strains due to the presence of a temperate phage can occur through the process of ________.
A. transformation
B. specialized transduction
C. generalized transduction
D. bacterial conjugation
Answer: B
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All fastidious microorganisms require which of the following for growth?
A. Iron B. Oxygen C. Temperatures near normal for the human body D. Extra nutrients (such as whole blood)
Which of the following is not a defining trait of the phylum Chordata?
A. notochord B. dorsal hollow nerve cord C. pharyngeal slits D. post anal tail E. protostome development
Chlorofluorocarbons (CFCs) are one of the main gasses that contribute to the destruction of the ozone layer. Which of the following is not a source of CFCs?
a. Plastic foam b. Coolants in appliances c. Aerosol cans d. Solvents e. Exhaust from automobiles
In the presence of carbon dioxide
A. hemoglobin dissociates. B. hemoglobin is not able to bind with bicarbonate. C. hemoglobin changes shape, causing it to give up oxygen more readily. D. the formation of bicarbonate causes oxygen to bind more tightly to hemoglobin.