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Johann Gregor Mendel studied patterns of trait inheritance in plants during the nineteenth century.
BotanyMendel's lawGeneticsRh factor is a protein found on the outside of Rh-positive red blood cells.
PregnancyRh-Hr Blood-Group SystemBlood Group IncompatibilityFetal BloodHuman Papillomavirus, or HPV, is a viral pathogen that most commonly spreads through sexual contact.
PapillomavirusesHuman Papilloma VirusGenital WartsCondylomata AcuminataVenereal Warts