It is even more complicated than that! Some immune cells, like T cells, will actually edit their own DNA through a process named V(D)J recombination. So the imm

It is even more complicated than that! Some immune cells, like T cells, will actually edit their own DNA through a process named V(D)J recombination. So the immune system is actually editing some of its own DNA! https://en.wikipedia.org/wiki/V(D)J_recombination https://en.wikipedia.org/wiki/V(D)J_recombination