A part of the upper throat (pharynx) extending from the posterior nasal cavity; carries air inhaled through the nose
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Multiple Choice Question
Which phenomenon describes the situation where an autoimmune response is triggered because a microbial pathogen expresses protein sequences structurally similar to the host's own native proteins?कौन सी परिघटना (phenomenon) उस स्थिति का वर्णन करती है जहां एक ऑटोइम्यून प्रतिक्रिया शुरू हो जाती है क्योंकि एक माइक्रोबियल रोगज़नक़ (pathogen) मेजबान के स्वयं के मूल प्रोटीन के समान संरचनात्मक रूप से प्रोटीन अनुक्रम व्यक्त करता है?
Explanation:
Molecular mimicry occurs when structural similarities between a foreign antigen and a self-antigen confuse the immune system. For example, rheumatic fever occurs when antibodies against Streptococcus cross-react with human heart tissue.
आणविक मिमिक्री तब होती है जब किसी विदेशी एंटीजन और स्व-एंटीजन के बीच संरचनात्मक समानताएं प्रतिरक्षा प्रणाली को भ्रमित करती हैं। उदाहरण के लिए, आमवाती बुखार (rheumatic fever) तब होता है जब स्ट्रेप्टोकोकस के खिलाफ एंटीबॉडी मानव हृदय ऊतक के साथ प्रतिक्रिया करते हैं।
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This question belongs to the set "Biology Practice Test 12 – Unit 3 (Microbiology & Immunology – SET 4/4)". Click below to read detailed notes and attempt the full quiz.
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