A man is suffering severe foot pain in the area of what looks like a large wart. He reports he has had the wart for some time, and the pain and swelling have developed slowly. A sample from the lesion shows that the pus contains large cells that stain a
golden brown color. The man is likely suffering from
A) sporotrichosis.
B) necrotizing fasciitis.
C) chromoblasomycosis.
D) mycetoma.
E) phaeohyphomycosis.
C
Bloom's Taxonomy: Application
Section: Mycoses of the Hair, Skin, and Nails
Learning Outcome: 19.43
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Comparison of two-dimensional gels from cells in stationary versus active growth phases reveals that one protein (A) has disappeared and a slightly larger protein (B) has appeared in the active cells
Mass spectrophotometry of the two spots indicates that the new larger protein (B) has sequences that match the smaller protein (A). Which of the following statements is not supported by this result? A. Proteins A and B are the same; however protein A has been covalently modified by phosphorylation. B. Proteins A and B are the same; however protein B has been bound by a cofactor. C. Proteins A and B are the same; however protein B has been bound by metal ions. D. Proteins A and B are the same; however protein B has been covalently modified by phosphorylation. E. Proteins A and B are the same; however protein A has been covalently modified by proteolytic cleavage.
If a population does not satisfy the Hardy-Weinberg equilibrium model, what may you assume about that population?
A. Evolutionary mechanisms are affecting the population. B. Evolution is occurring. C. No new mutations are occurring, only nonrandom mating. D. No migration is occurring. E. Evolutionary mechanisms are affecting the population and evolution is occurring.
Zebrafish are a good model organism for vertebrate growth and development because
a. they grow larger than many other fish b. they are at the top of the food chain c. they can regenerate tissues that become damaged such as fins d. they have more offspring than many fish e. they undergo a different form of mitosis than most organisms
What is true about homologous structures?
a. they are always used for the same function b. they are formed from different developmental pathways c. the same genes direct their development d. they are only found within species not between species e. more than one of these is correct