title: Quantitative studies on the arrangement of human metaphase chromosomes. IV. The association frequency of human acrocentric marker chromosomes.
mesh_terms: D002455:Cell Division; D002466:Cell Nucleolus / Q000648:ultrastructure; D002869:Chromosome Aberrations; D002875:Chromosomes / Q000648:ultrastructure*; D002901:Chromosomes, Human, 13-15; D002904:Chromosomes, Human, 21-22 and Y; D004314:Down Syndrome / Q000235:genetics; D006801:Humans; D008214:Lymphocytes / Q000648:ultrastructure; D010641:Phenotype; D011110:Polymorphism, Genetic