Which of the following occurs in exocrine secretions and functions to attack pathogens before they enter body tissues?
What is the function of IgG antibodies?
A)They play a role in the activation of B cells.
B)They attack pathogens before they enter the body tissues.
C)They are responsible for defense against many viruses, bacteria, and bacterial toxins.
D)They accelerate inflammation upon exposure to antigens.
E)They are responsible for cross reactions between incompatible blood types.
Which of the following stimulates the production of blood cells in red bone marrow and of lymphocytes in lymphoid tissues and organs?
The ________ form the base of a typical antibody molecule.
A)variable segments of the heavy chains
B)constant segments of the light chains
C)variable segments of the light chains
D)constant segments of the heavy chains
E)constant and variable segments of the light and heavy chains