A monoclonal antibody reacts against
a. a single antigenic determinant.
b. different epitopes on the same antigen.
c. different antigens of the same organism.
d. a single type of pathogen.
e. a single type of macromolecule.
A
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Amoebae are characterized by:
A. locomotion by extension of pseudopodia B. possession of hard shells C. tertiary symbiosis D. causing cancer E. conjugation
Mycobacterium tuberculosis is one of the few species of bacteria that
A. are encapsulated. B. stain Gram-negative. C. are acid fast. D. stain Gram-positive.
In the absence of oxygen, yeast cells can obtain energy by fermentation, resulting in the production of _____
A) ATP, CO2, and ethanol (ethyl alcohol) B) ATP, CO2, and lactate C) ATP, NADH, and pyruvate D) ATP, pyruvate, and acetyl CoA
Compared to eukaryotes, prokaryotic cells lack which structure(s)?
A. A nucleus B. Membrane bound organelles C. Only A D. All of the above