a homozygous dominant birth contains only dominant fluoride
homo_erectus is not genus_homo. homo_heidelbergensis is primitive. stannous_fluoride is not fluoride. homo_erectus is not homo. hydrogen_fluoride is not fluoride. stannous_fluoride is fluoride. homo_erectus is genus_homo. dominant_gene is gene. hydrogen_fluoride is fluoride. eragrostis is not monocot_genus.