Isolation and characterization of human metaphase chromosomes.
D002455:Cell Division; D002499:Centrifugation, Density Gradient; D002875:Chromosomes; D004247:DNA / Q000032:analysis; D005374:Filtration; D006367:HeLa Cells; D006801:Humans; D007038:Hypotonic Solutions; D012313:RNA / Q000032:analysis; D012260:Ribonucleases / Q000494:pharmacology
D007038:Hypotonic Solutions; D012313:RNA; D004247:DNA; D012260:Ribonucleases