Transplantation of tissues/organs fails often due to non-acceptance by the patient's body. Which type of immune-response is responsible for such rejections ?

1. Cell - mediated immune response

2. Hormonal immune response

3. Physiological immune response

4. Autoimmune response

Doubtly Asked 30 Oct 2026 NEET UG 2017 Practice test neet Save WhatsApp Report

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Answer: 1. Cell - mediated immune response

Graft rejection is due to cell-mediated immune response, carried out by T-lymphocytes that recognise the foreign tissue.

The humoral (antibody) response is not the main cause of graft rejection, and autoimmunity is an attack on one's own tissue.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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