Noncompetitive inhibition of enzymes occurs

A. when a cofactor, instead of a reactant, binds to the enzyme active site.
B. when the product, instead of the reactant, of a reaction binds to the active site.
C. by blocking the production of an enzyme.
D. when a substance binds to an enzyme at a site away from the active site.
E. when a substance other than the substrate binds at the active site of an enzyme.


D. when a substance binds to an enzyme at a site away from the active site.

Biology & Microbiology

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Human skin color is an example of ____, while sickle-cell anemia is an example of ____

a. multiple alleles; epistasis b. incomplete dominance; multiple alleles c. polygenic inheritance; pleiotropy d. pleiotropy; polygenic inheritance e. incomplete dominance; pleiotropy

Biology & Microbiology

What is the most abundant microbe in the ocean?

a. Bacteria b. Archaea c. Fungi d. Viruses

Biology & Microbiology

Name a defining characteristic of innate immunity

What will be an ideal response?

Biology & Microbiology

Two nervous system diseases are food-borne, botulism caused by Clostridium botulinum and listeriosis, a form of meningitis, caused by Listeria monocytogenes. These diseases differ in that 

A. listeriosis is associated with contaminated low-acid vegetables, whereas botulism is associated with contaminated infant formula. B. botulism has a very high mortality rate (~50%), whereas listeriosis is readily cured by a course of antibiotics. C. listeriosis primarily affects pregnant women, whereas botulism can affect anyone. D. botulism results from an intoxication, whereas listeriosis is an infection.

Biology & Microbiology