crossing a heterozygous dominant organism with a homozygous recessive organism causes their offspring to be homozygous recessive of 50% probability
crossing_over_chromosomal is not replacement_event. crossing_over_chromosomal is replacement_event. recessive_gene is gene. saprophytic_organism is not heterotroph. autosomal_recessive_disease is genetic_disease. x_linked_recessive_inheritance is not inheritance. patriarchal_cross is cross. recessive_gene is not gene. x_linked_recessive_inheritance is inheritance. saprophytic_organism is heterotroph.