Which of the following contribute to the successful application of Koch's postulates?
A) the development of the compound microscope
B) the theory of abiogenesis
C) the ability to record the appearance of bacteria photographically
D) the development of simple bacterial staining techniques
E) the development of techniques for sterile transfer of bacteria
E
Bloom's Taxonomy: Application
Section: The Golden Age of Microbiology
Learning Outcome: 1.13
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What is a proto-oncogene?
A. A gene that regulates cell division. D. A DNA repair gene. B. A cancer gene. E. More than one of these. C. A gene that encodes tumor-suppressing proteins.
Which of the following is not a piece of evidence that supports the theory of evolution?
A. Changes in the genetic makeup of an individual organism have no influence on evolution. B. Different populations of the same species show adaptations suitable for their local conditions. C. Changes in the characteristics displayed by species can be linked to environmental changes. D. Selective breeding of domesticated plants and animals indicates that the shape, color, behavior, metabolism, etc., of organisms can be selected for.
How many species of animals and plants are estimated to go extinct in our lifetimes?
A. 500 B. 10,000 C. 25 D. one-fifth of the world's species
________ is characterized by tender, swollen gums with a bright red or purplish coloration; the gums may also pull away from teeth, and bad breath and tooth loss are also frequent manifestations
A) Gingivitis B) Dental caries C) Oral yeast infection D) Thrush E) Periodontal disease