Question

1. Autoimmunity is most likely to occur when

A. An antigen impinges upon the immune system that crossreacts with a peripheral self-antigen.

b. complement is activated

c. toxins are produced by bacteria, causing tissue damage.

d. an infection occurs that is prolonged.

2. What is (are) common to both MHC class 1 molecules and MHC class 2 molecules? choose the most correct answer

a. both show limited variability from one individual to another.

b. both bind peptides generated within the cell and present those peptides on the surface of the cell, and show limited variability from one individual to another.'

c. both bind peptides generated within the cell and present those peptides on the surface of the cell

d. both are molecules that can be found on the surface of all cells of the human body.

Which statement best describes what a "hapten" is:

a. a molecules unable to bind to antibody.

b. immunogenic '

c. non-immunogenic

d. non-immunogenic and unable to bind to antibody

Answer 1

answers

1. correct choice is A- an anitgen impinges upon the immune system that cross reacts with a peripheral self antigen

2. = b,c

b. both bind peptides generated within the cell and present those peptides on the surface of the cell, and show limited variability from one individual to another.

c. both are molecules that can be found on the surface of all cells of the human body

3. hapten is :

d: hapten is non-immunogenic and unable to bind to antibody.