This theory works only if there is no immune system at all. As soon as a cell creates alien stuff, it shreds this stuff and presents the fragments on its surface, so the cells of the immune system can detect it.
This theory works only if there is no immune system at all. As soon as a cell creates alien stuff, it shreds this stuff and presents the fragments on its surface, so the cells of the immune system can detect it.
https://infogalactic.com/info/Antigen_presentation
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