Question

Which antibody was first produced? ​

Answer 1

Answer:

lgM.....

hope it helps ⬆️⬆️☺❤

Answer 2

Answer:

IgM

IgM is the first immunoglobulin expressed in the human fetus (around 20 weeks) and phylogenetically the earliest antibody to develop. IgM antibodies appear early in the course of an infection and usually reappear, to a lesser extent, after further exposure...