Which of the Following is Not a Property of an IgG

Question

Which of the following is not a property of an IgG heavy chain?
A) has one constant segment
B) has one variable segment
C) binds one light chain
D) binds antigen at both ends
E) binds complement in the constant region

Accepted Answer

IgG heavy chain does not bind antigen at both ends. The variable segment binds to antigen, while the constant segment binds to other components of the immune system such as complement or Fc receptors on other cells.