title: Is the similarity of monozygotic twins due to genetic factors alone?
mesh_terms: D000818:Animals; D001835:Body Weight; D004624:Embryo Transfer; D005260:Female; D005838:Genotype; D006197:Hair / Q000254:growth & development; D008297:Male; D051379:Mice; D010641:Phenotype; D011247:Pregnancy; D014427:Twins; D014429:Twins, Dizygotic; D014430:Twins, Monozygotic; D015053:Zygote / Q000502:physiology*