The body identifies normal body cells by way of the unique major histocompatibility complex displayed by the cell as a surface protein.

Question

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The major histocompatibility complex (MHC) is a group of genes that code for proteins found on the surface of cells that help the immune system recognize foreign substances. The MHC is unique to each individual and is used by the body to identify normal body cells from foreign cells.

The Body Identifies Normal Body Cells by Way of the Unique