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

  1. A
    Graft rejection
  2. B
    Auto – immune disease
  3. C
    Active immunity
  4. D
    Allergic response

Solution & Step-by-step Explanation

When the immune system loses the ability to distinguish between self and non-self cells and starts attacking the body's own cells, it results in an auto-immune disease (e.g., Rheumatoid arthritis).

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In higher vertebrates, the immune system can distinguish self – cells and non – self. If this property is lost due to genetic abnormality and it attacks self – cells, then it leads to:
A
Graft rejection
B
Auto – immune disease
C
Active immunity
D
Allergic response

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