crossing two living things with recessive traits causes their offspring to have that recessive trait
grade_separation is crossing. crossing_over_chromosomal is not transfer. crossing_over_chromosomal is transfer. recessive_gene is gene. crossing_over_chromosomal is not replacement_event. crossing_over_chromosomal is replacement_event. cross_pollination is not pollination. grade_separation is not crossing. cross_pollination is influence. cross_pollination is pollination.