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1 | ![](/olcweb/styles/shared/spacer.gif) | ![](/olcweb/styles/shared/spacer.gif) What types of molecules that are unique to microbes might toll-like receptors recognize? |
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2 | ![](/olcweb/styles/shared/spacer.gif) | ![](/olcweb/styles/shared/spacer.gif) How would damage to the ciliated cells of the respiratory tract predispose a person to infection? |
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3 | ![](/olcweb/styles/shared/spacer.gif) | ![](/olcweb/styles/shared/spacer.gif) Why can stem cell transplants be used to replace defective lymphocytes? |
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4 | ![](/olcweb/styles/shared/spacer.gif) | ![](/olcweb/styles/shared/spacer.gif) How could colony-stimulating factors be used as a therapy? |
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5 | ![](/olcweb/styles/shared/spacer.gif) | ![](/olcweb/styles/shared/spacer.gif) Why would the discovery of toll-like receptors alter the view that innate
immunity is non-specific? |
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6 | ![](/olcweb/styles/shared/spacer.gif) | ![](/olcweb/styles/shared/spacer.gif) What could a microorganism do to avoid engulfment? |
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7 | ![](/olcweb/styles/shared/spacer.gif) | ![](/olcweb/styles/shared/spacer.gif) How could infection of the fallopian tubes lead to sterility and ectopic pregnancy? |
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8 | ![](/olcweb/styles/shared/spacer.gif) | ![](/olcweb/styles/shared/spacer.gif) Considering that retroviruses have an RNA genome, why would their replication not generate double-stranded RNA? |
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9 | ![](/olcweb/styles/shared/spacer.gif) | ![](/olcweb/styles/shared/spacer.gif) Syphilis was once treated by intentionally infecting the patient with
the parasite that causes malaria, a disease characterized by repeated bouts
of fever, shaking, and chills. Why would this treatment cure syphilis? |
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