Silk is continuously secreted by the silkworm during which stage?
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Multiple Choice Question
Match List-I (T Helper Cell Subset) with List-II (Primary Function/Cytokine Profile)List-IP. Th1 cellsQ. Th2 cellsR. Treg (Regulatory) cellsList-II1. Secrete IL-4, IL-5; promote B cell class switching to IgE and anti-parasitic responses2. Secrete IL-10, TGF-beta; suppress immune responses and maintain tolerance3. Secrete IFN-gamma; strongly activate macrophages to clear intracellular pathogens.सूची-I (T हेल्पर सेल उपसमुच्चय) का सूची-II (प्राथमिक कार्य/साइटोकिन प्रोफाइल) के साथ मिलान करेंसूची-IP. Th1 कोशिकाएंQ. Th2 कोशिकाएंR. Treg (रेगुलेटरी) कोशिकाएंसूची-II1. IL-4, IL-5 स्रावित करती हैं; IgE में B सेल क्लास स्विचिंग और परजीवी-रोधी प्रतिक्रियाओं को बढ़ावा देती हैं2. IL-10, TGF-बीटा स्रावित करती हैं; प्रतिरक्षा प्रतिक्रियाओं को दबाती हैं और सहनशीलता (tolerance) बनाए रखती हैं3. IFN-गामा स्रावित करती हैं; इंट्रासेल्युलर रोगजनकों को साफ करने के लिए मैक्रोफेज को मजबूती से सक्रिय करती हैं।
Explanation:
Th1 cells (IFN-γ) drive cell-mediated immunity. Th2 cells (IL-4) drive humoral immunity and allergy. Tregs (IL-10/TGF-β) dampen the immune response to prevent autoimmunity.
Th1 कोशिकाएं (IFN-γ) सेल-मध्यस्थता प्रतिरक्षा चलाती हैं। Th2 कोशिकाएं (IL-4) ह्यूमरल प्रतिरक्षा चलाती हैं। Tregs (IL-10) ऑटोइम्यूनिटी को रोकने के लिए प्रतिरक्षा प्रतिक्रिया को कम 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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