An infectious disease researcher isolates the pathogen responsible for an emerging disease. The microbe is grown in the lab for many generations. A preparation of the laboratory-grown microbe is treated with ionizing radiation and then tested for its potential as a vaccine. What type of vaccine is this?
A) attenuated
B) subunit
C) combination
D) toxoid
E) inactivated whole
E
Biology & Microbiology
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What is thought to be responsible for the worldwide deaths of corals and their endosymbiotic algae?
a. ocean acidification b. nitrogen fixation c. soil runoff d. declining primary productivity e. depletion of oxygen in the oceans
Biology & Microbiology
Most likely, about 10 percent of all species go extinct every million years
Indicate whether the statement is true or false.
Biology & Microbiology
An individual is unable to detect any chemicals. Which of the following would retain function?
1.free nerve endings 2.hair cells 3.taste receptors 4.olfactory receptors
Biology & Microbiology
New bacterial characteristics are being produced by splicing strands of
A. mRNA. B. carbohydrates. C. tRNA. D. DNA.
Biology & Microbiology