Question

In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormally and it attacks self-cells, then it leads to:

• A. Allergic response
• B. Graft rejection
• C. Auto-immune disease
• D. Active immunity

Answer 1

The correct option is C Auto-immune disease

An autoimmune disease is a condition arising from an abnormal immune response to normal body tissue. In an autoimmune disease, the immune system fails to recognize self-cells and produces antibodies against self-cells. Common symptoms include low-grade fever and feeling tired. Autoimmune disease is due to genetic abnormality or other environmental factors.
So, the correct answer is 'Autoimmune disease'.