title: rDNA and acrocentric chromosomes in man.
mesh_terms: D002455:Cell Division; D002466:Cell Nucleolus; D002869:Chromosome Aberrations; D002874:Chromosome Mapping; D002875:Chromosomes; D002901:Chromosomes, Human, 13-15; D002904:Chromosomes, Human, 21-22 and Y; D004247:DNA; D004314:Down Syndrome / Q000235:genetics; D005260:Female; D006801:Humans; D008297:Male; D009693:Nucleic Acid Hybridization; D010641:Phenotype; D011110:Polymorphism, Genetic; D012335:RNA, Ribosomal; D012270:Ribosomes; D014316:Tritium
chemical_list: D012335:RNA, Ribosomal; D014316:Tritium; D004247:DNA