B-1 B Cells Are Considered a Component of the Innate

question 20

Multiple Choice

B-1 B cells are considered a component of the innate rather than the adaptive immune response. The antibodies produced by B-1 B cells generally recognize capsular polysaccharide antigens found on many bacteria and viruses. These antibodies are considered part of the innate immune response because:

• A) They recognize pathogens rather than innocuous harmless antigens.
• B) They are produced prior to the exposure to the pathogen.
• C) They are specific for carbohydrate rather than protein antigens.
• D) They are secreted by B-1 B cells starting at 48 hour post-infection.
• E) They are not generated by the process of VD-J recombination of immunoglobulin genes.

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Definitions:

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Year 1

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An accounting approach that includes all manufacturing costs (direct materials, direct labor, and both variable and fixed overhead) in the cost of a product.

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