Which of the following represents the correct order of activity in the complement cascade?

A. Polymerization, initiation, membrane attack, and amplification
B. Membrane attack, initiation, polymerization, and amplification
C. Initiation, membrane attack, polymerization, and amplification
D. Initiation, amplification, polymerization, and membrane attack
E. Amplification, initiation, membrane attack, and polymerization


Answer: D

Biology & Microbiology

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Analysis of chromosomes in metaphase of mitosis is known as ________ .

Fill in the blank(s) with the appropriate word(s).

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Although validated susceptibility testing methods do not exist for this group of organisms, in vitro data suggest that certain cephalosporins and aminoglycosides are effective against which one of the following groups of organisms?

a. O. anthropi b. S. putrefaciens c. P. yeei d. R. radiobacter

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Which is the most efficient at initiating the classical pathway of the complement cascade?

A. IgA B. IgD C. IgM D. IgE

Biology & Microbiology

Seed banks ____

a. provide a source of seeds for farmers b. preserve seeds for museums c. preserve plant genetic diversity d. distribute seeds to member seed companies e. help to create additional plant diversity

Biology & Microbiology