At what point in development does discrimination on the part of the immune system between self and nonself occur?
A)Prior to birth
B)In infancy
C)Upon exposure to a pathogen
D)Upon exposure to chemicals
E)Throughout life

Question

Quizplus · Accepted Answer

The immune system learns to recognize agents (antigens) that represent self and agents that are nonself (foreign). Most of this recognition is developed prior to birth.

At What Point in Development Does Discrimination on the Part