Question

Which of the following is the cause of autoimmune diseases?

(a) Immune System begins to attack its cells and tissues

(b) Immune System starts producing cells and tissues

(c) Immune System fails completely

(d) Immune System produces WBCs in a huge number

I had been asked this question in class test.

This question is from Human Health and Disease topic in section Human Health and Disease of Biology – Class 12

Answer 1

Right answer is (a) Immune System begins to attack its cells and tissues

Easy explanation: Autoimmune diseases are caused when the immune system starts attacking its cells and tissues. It is an abnormal immune reaction in which the body begins to reject substances and tissues of the body.