What Is the Major Histocompatibility Complex (MHC)

question 178

Multiple Choice

What is the major histocompatibility complex (MHC) ?

• A)The major histocompatibility complex is a collection of circulating proteins that bind pathogens and enhance phagocytosis.
• B)The major histocompatibility complex is a cell membrane barrier that blocks pathogens from entering cells if the MHC barrier is expressed.
• C)The major histocompatibility complex is the term for the coordinated antibody-mediated response to a pathogen.
• D)The major histocompatibility complex is a portion of chromosome 12 that contains genes that control the production of anti-viral proteins by normal cells.
• E)The major histocompatibility complex is a portion of chromosome 6 that contains genes that control the synthesis of membrane glycoproteins.

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Definitions:

Clotting Pathway

A series of biochemical events, involving coagulation factors, that stop bleeding by forming a clot.

Blood Type

A classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells, which can affect blood transfusions and organ transplantation.

Type A

Often referring to Type A personality, characterized by competitiveness, self-imposed stress, and a sense of urgency.

Type O

A blood type in the ABO blood group system characterized by the absence of A and B antigens on red cells and the presence of anti-A and anti-B antibodies in the plasma.