Antibody molecules ____
a. are secreted by B cells and T cells
b. stay attached to the B cell membrane as B cell receptors
c. inactivate complement proteins
d. prevent phagocytosis
e. can each bind to many different antigens
ANSWER: b
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Identify a sequence that is most likely to be recognized by a restriction enzyme.
A. CGATGC B. CCCTTT C. TGGCCA D. TCATCA Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about restriction enzymes? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Bacterial strains that have distinct antigenic properties are called ________.
Fill in the blank(s) with the appropriate word(s).
Sometimes the DNA marker allele and a QTL occur together more frequently than would otherwise be expected, either because they interact or because of natural selection. What term describes this?
What will be an ideal response?
Asclepius, the Greek physician,
A. believed in or advocated the supernatural causes of, and cures for, disease. B. followed, Imhotep's foot steps and taught medicine in the old University of Alexandria during the Ptolemaic reign in Egypt C. wrote De contagione et contagiosis morbis et curatione. In it he described numerous contagious diseases and the means by which contagion can be spread. D. propagated the hypothesis that poisonous vapor or mist made up of particles from decomposing material, caused disease E. believed in or advocated that diseases had natural causes, e.g., "The Four Humor Theory", and that they could be cured by rational methods.