Researchers would like to create HIV protease inhibitors that will not become ineffective due to viral strain resistance. One approach is to design a:
A. protease with no aspartate residues.
B. protease inhibitor and treat all patients in a community simultaneously.
C protease inhibitor that will not be mutated in the aspartate region.
D. protease inhibitor that binds to highly conserved protease sequences.
E. random screening program that tests hundreds of drug candidates.
D
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What are responsible for the rapid mobilization
of the immune response after a subsequent attack by a pathogen? a. naive B cells b. naive T cells c. NK cells d. memory cells e. macrophages
During alcoholic fermentation, __________ is
converted into ethanol. Fill in the blank(s) with the appropriate word(s).
Allosteric regulation of key enzymes in glycolytic and gluconeogenesis pathways may involve each of the following except may involve each of the following except
A) activating the enzyme activity. B) inhibiting the enzyme activity. C) binding of the allosteric regulator molecule to directly compete with substrate binding in the enzyme active site. D) binding of the allosteric regulator molecule to a site on the enzyme other than the active site. E) Any of the above may be involved.
An earthworm that feeds on the remains of plants and animals is acting as a _____.
a. producer b. secondary consumer c. tertiary consumer d. primary consumer e. detritivore