Scientists have inserted a gene from the bacterium Bacillus thuringiensis into corn plants in order to:
A) directly increase the growth rate of the corn.
B) increase the corn's resistance to insects.
C) decrease the plant's toxicity.
D) increase the plant's tolerance to solar radiation.
E) decrease the toxicity of Bacillus thuringiensis.
B) increase the corn's resistance to insects.
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The Cystoisospora belli organism, which contains two sporocysts with four sporozoites each, is recovered from fecal specimens and has also been implicated in traveler's diarrhea. The drug of choice to treat infection caused by C. belli is:
a. trimethoprim-sulfamethoxazole combina-tion. b. tetracycline. c. albendazole. d. flagyl.
Generally, membrane filters are not used to remove
A. bacteria from liquids. B. microorganisms from gases. C. spoilage agents from alcoholic beverages. D. enzymes.
Drugs that target peptidoglycan do not affect eukaryotes
Indicate whether this statement is true or false.
A segmented genome can result in antigenic shift
Indicate whether the statement is true or false