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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Randall Weingarten, MD is a practicing Psychiatrist (Therapist) in Palo Alto, CA. Dr. Weingarten graduated from Tufts University School of Medicine in 1968 and has been in practice for 48 years. He completed a residency at Stanford University School of Medicine. Dr. Weingarten also specializes in Neurology.