The number of major histocompatibility (MHC) protein combinations possible in a given population is enormous. However, an individual in that diverse population has a far more limited array of MHC molecules because each of the MHC genes has a large number of alleles, but each individual only inherits two for each gene
What is the role of the MHC gene?
MHC is a set of genes that code for proteins located on the surfaces of cells that assist the immune system detects foreign substances.
MHC protein molecules are classified into two types:
Class I MHC molecules are found on the membranes of nearly every cell in an organism, but class II molecules are found only on immune system cells termed macrophages and lymphocytes.
Hence, the correct answer is option C
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