Human's pollution of public water sources includes all of the following EXCEPT ____
a. pesticides
b. fertilizers
c. carcinogenic chemicals
d. radioactive materials
e. carbon dioxide
ANSWER: e
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Noncompetitive inhibitors of a reaction will bind _______
A. to the substrate B. to the active site of the enzyme C. somewhere on the enzyme that is not at the active site D. somewhere on the substrate other than at the active site E. to vitamins that accelerate the reaction
Which of the following statements is true regarding archaeons?
A. Like bacteria, they are killed by peptidoglycan-targeting antibiotics. B. They have cell walls composed of chitin. C. They do not include organisms that can undergo methanogenesis. D. Unlike bacteria, their cell size and cell shape is not determined by diffusion. E. Their transcriptional machinery is similar to the machinery used by eukaryotes.
Which of the following is (are) true about predator–
prey coevolution? a. Each species exerts selection pressure on the other. b. Predators are selective agents that favor improved prey defenses. c. Prey with better defenses are selective agents that favor better predator hunting skills. d. All of the above are true. e. None of the above are true.
All of the following statements about genes and copy number variations are true EXCEPT
A. copy number variations have been associated with specific diseases. B. individuals may differ as to the number of copies of a particular gene. C. an individual's genome often contains multiple copies of a gene. D. All of the answer choices are true.