The study of interaction of antigen and antibodies in blood is ___________?
Correct answer: B. serology
- A. etiology
- B. serology
- C. ecology
- D. histology
Explanation
Serology is the study of blood serum, especially the antibodies and antigens found in it and their reactions. Students may choose histology because it also ends in '-logy', but histology deals with tissues rather than immune reactions in serum. Etiology concerns the causes of disease, while ecology concerns organism-environment interactions.
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Specific defense mechanisms provide targeted immunity through B lymphocytes, T lymphocytes, antibodies and memory cells that recognize particular antigens. Questions cover humoral and cell mediated responses, clonal selection, primary and secondary immune responses, vaccination and passive immunity, while distinguishing adaptive defenses from the immediate, non specific innate response.
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