Which of the statements below does not describe antigens? a. The parts of antigen molecules that initiate immune responses are called epitopes or antigenic determinants. b. Antigens can include proteins, nucleic acids, lipoproteins, glycoproteins, and certain large polysaccharides. c. Antigens exhibit immunogenicity and reactivity. d. Antigens only come from microbes.

D. antigen only come from microbes

Explanation:

Antigens are substances which elicits a response by the antibodies. Antigens Antigens include proteins, nucleic acids, lipoproteins, glycoproteins, and certain large polysaccharides.

They parts of antigen molecules that initiate immune responses are called epitopes or antigenic determinants.

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the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.