Struktur dan Fungsi Antibodi

Antigen merupakan protein dan permukaan polisakarida berbagai mikroba, jaringan cangkokan yang tidak cocok, ataupun sel-sel darah yang ditransfusikan. Selain itu, antigen dapat pula berwujud protein asing seperti racun lebah atau serbuk sari yang dapat menyebabkan alergi atau hipersensitivitas....
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contah Narrative Text

The Prince and His Best Friends Once upon a time, there lived a kind young prince named Jonathan. He was loved, and adored by his people. His two close friends were Peter Piper, the servant of the palace and Franklin Greedy, the son of an Aristocrat. One day,...
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