F1 hybrid is a term used in genetics and selective breeding. F1 stands for Filial 1, the first filial generation seeds/plants or animal offspring resulting from a cross mating of distinctly different parental types.
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Dr. Hirsch is a professor of medicine and holds the Diabetes Treatment and Teaching Chair at the University of Washington School of Medicine. He completedâ¦. Specialties and Expertise: Diabetes, Endocrinology, Internal Medicine.