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प्रश्न
What is the primary function of natural killer cells in innate immunity?
पर्याय
They produce antibodies against bacterial antigens
They secrete lysozyme to destroy bacteria
They provide non-specific defence against viral infections and tumours
They activate the complement cascade
MCQ
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उत्तर
Natural killer cells are important cellular components of innate immunity that provide non-specific defence against viral infections and tumour cells. They are part of the cellular barrier system and do not require prior sensitization to their targets.
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