title: Chromosome preparations from the avian allantoic sac.
mesh_terms: D000818:Animals; D001717:Birds / Q000166:cytology*; D002642:Chick Embryo / Q000166:cytology*; D002875:Chromosomes / Q000032:analysis*; D010856:Columbidae / Q000196:embryology; D003582:Cytogenetics; D005321:Extraembryonic Membranes / Q000166:cytology*; D006652:Histological Techniques; D008722:Methods; D008858:Microscopy, Phase-Contrast; D008938:Mitosis; D014422:Turkeys / Q000196:embryology