Antigen ________ is a scenario in which pathogen antigens resemble host antigens. Antigen ________ is a scenario in which the pathogen changes its antigens. These are just a couple of ways that pathogens may avoid host immune system detection.

The distinct feature of an antigen that stimulates an adaptive immune response is called a(n) ________________.

An autoantigen is ____________  .

a. an antigen from normal microbiota

b. a normal body component

c. an artificial antigen

d. any carbohydrate antigen

e. nucleic acid

When is antigen processing an essential prerequisite for an immune response?

Indicate whether each statement is true or false. If the statement is false, change the underlined word or phrase to make the statement true.

_____ ABO blood group antigens are found on nucleated cells.

Why is a child born to an Rh⁺ mother not susceptible to Rh-related hemolytic disease of the newborn?