Factors that contribute to difficulty in eliminating fungal infections via the body's defenses include
A. the capsules of some fungi resist phagocytosis.
B. many fungi are resistant to cell mediated immune responses.
C. many pathogenic fungi produce leukocidins.
D. both resistance to phagocytosis and cell mediated immunity.
E. many pathogenic fungi are resistant to the action of complement.
Answer: D
You might also like to view...
A commercial fisherman is very concerned that overfishing will result in a decrease in tuna population size, thus affecting his catches in future years. What strategy can he employ to make sure that the tuna population can be sustained in the long term?
A. He can only catch young, non-reproducing fish. B. He can only catch old fish (past the reproductive age). C. He can only catch fish at the reproductive age.
Except for a shallow surface layer, the earth's crust is known to be free of microorganisms.
Answer the following statement true (T) or false (F)
How is DNA introduced into plants using the Ti plasmid?
a. The gene of interest remains in the Ti plasmid after the plasmid has transformed the plant, and the gene is expressed in the plant. b. The Ti plasmid inserts the gene of interest directly into the plant's nuclear DNA. c. The entire Ti plasmid including the gene of interest is inserted into the plant’s nuclear DNA. d. The Ti plasmid inserts the foreign DNA into the plant's chloroplast DNA. e. The Ti plasmid inserts the foreign DNA into the plant's mitochondrial DNA.
When the phenotype of an organism exhibits two characteristics that look like a blend of the parents’ traits—such as petal color in the snapdragon plant—this is known as _______.
a. wild type b. sex-linked c. codominance d. incomplete dominance