hybridization, introgression, crossbreeding, tetraploid, heterosis, asexual reproduction, outcrossing, metazoan, apis mellifera, interbreeding, polyploidy, coevolution, saccharomyces cerevisiae, homozygosity, vernalization, dedifferentiation, arabidopsis thaliana, saccharomyces, eukaryote, backcross, xenopus, cotyledon, estrous, photoperiod, prokaryote, outbreeding, speciation, abscission, reticulata, intraspecific, hyrax, erwinia, subsp, epistasis, organogenesis, xenopus laevis, transgenic, teosinte, centromeres, plastid, morula, monocots, trichinella, rflp, meristem, cellulase, bacteroides, somites, landrace, mutagenesis, sporulation, ciliates, bos taurus, meiotic, sessile, agouti, xanthomonas, oligosaccharide, commensal, aedes albopictus, green alga, trypanosome, schistosome, cucumis, chimaera, spodoptera, chlamydomonas, gastrulation, xylan, sertoli cell, hermaphroditism, triticum, rotifer, taxa, antitumour, teleost, brassica oleracea, gallus gallus, barbatus, versicolor, peroxidase, formosa, rhizobium, papillomas, peromyscus, morphogen, endosymbiosis, dermatophyte, proteolysis, sativum, spinous, gurt, hemolymph, peroxisome, latifolia, hybrids, agrobacterium, vivax, tribolium, mycosis, pigeon pea, parasitoid, hybridizations, cloning, sequencing, adsorption, elicitation, electrolysis, impregnation, imprinting, mating, amplification, bridging, catalysis, channeling, fertilisation, flocculation, flotation, fusion, induction

conjugation, coupling, pairing, sexual union, union

cross, crossing, hybridizing