Which of the following contributes to the pathogenesis of Cryptococcus neoformans?
A) the ability to produce hyphae which penetrate tissues
B) the production of leukocidins
C) the production of mucinase
D) the ability to resist killing after phagocytosis
E) the production of melanin and the presence of a phagocyte-resistant capsule
E
You might also like to view...
Pedigree analysis is necessary when studying human inheritance patterns because _____
a. humans have more than 20,000 genes b. of ethical problems with experimenting on humans c. inheritance in humans is more complicated than in other organisms d. genetic disorders occur in humans e. all of these
In most ecosystems, the primary producers use energy from _____ to build organic compounds
a. inorganic chemicals c. heat b. sunlight d. lower trophic levels
Most bacteria are
a. symbionts. b. heterotrophs. c. chemoautotrophs. d. photoautotrophs. e. microbial predators.
In gel electrophoresis, DNA molecules move toward the ________ electrode because they have an overall ________ charge.
A. negative; negative B. positive; positive C. negative; positive D. positive; negative E. negative and positive; neutral