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Human Health and Disease — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYHuman Health and Disease1 Mark
MCQ
$...............$ is$/$are the characteristic$/s$ of acquired immunity:
  • A
    Specificity of antigen.
  • B
    Difference between self and non$-$self.
  • C
    Memory retention.
  • ✓
    All of the above.
✓

Answer

Correct option: D.
All of the above.

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