The antimicrobial effects of AMPs include all of the following EXCEPT
A) inhibition of cell wall synthesis.
B) lysis of bacterial cells.
C) destruction of nucleic acids.
D) pore formation in bacterial membranes.
E) inhibition of phagocytosis.
E
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When considering nomenclature for scientific names, what is the difference between the two primates, Homo sapiens and Homo erectus?
A. One is a primate but the other is not. B. They are animals of a different kingdom. C. They are animals of a different order. D. They are animals of a different species. E. They are animals of a different genus.
A short-lived, highly reactive, uncharged molecule containing a single unpaired electron in the outermost shell is known as a(n):
a) ion. b) catabolite. c) free radical. d) point mutation.
A sick child may have influenza or RSV. These virus infections have different treatment options, so the physician requests antibody titer tests. The results are as follows: anti-influenza antibodies are primarily IgM, and anti-RSV antibodies are all IgA
and IgG. Which of the following is the most appropriate interpretation? A) the child has a current RSV infection and was previously exposed to influenza. B) the child currently has influenza and has previously been exposed to RSV. C) the child has concurrent influenza and RSV infections. D) the child has neither influenza nor RSV. E) the results do not provide sufficient data to draw a conclusion.
The selection coefficient describes:
a. the value of an allele after selection. b. how many individuals survive to reproduction. c. genotype relative to an alternative genotype. d. the change in allele frequencies due to direct selection. e. the degree of dominance of one allele relative to an alternative allele.