A-LevelBiologyImmunity9700/12 · Oct/Nov 2016 · Q401 Mark

What occurs when active immunity is artificially induced?

ANon-self antibodies attack self antigens.

BNon-self antigens attack self antibodies.

CSelf antibodies attack non-self antigens.

DSelf antigens attack non-self antibodies.

✓ Correct answer

C: Self antibodies attack non-self antigens.

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