Cytological and molecular studies of nucleolar organizing region variants and recombination in trisomy 21.
Roulston
D
D
Department of Obstetrics/Gynecology, University of Maryland School of Medicine, Baltimore 21201.
Antonarakis
S E
SE
Lewis
J G
JG
Cohen
M M
MM
Schwartz
S
S
D015139:Blotting, Southern; D002874:Chromosome Mapping; D002891:Chromosomes, Human, Pair 21 / Q000648:ultrastructure; D003434:Crossing Over, Genetic; D015342:DNA Probes; D004314:Down Syndrome / Q000209:etiology / Q000235:genetics*; D005260:Female; D006801:Humans; D008297:Male; D008423:Maternal Age; D009630:Nondisjunction, Genetic; D009697:Nucleolus Organizer Region / Q000648:ultrastructure*; D010375:Pedigree; D011995:Recombination, Genetic
D015342:DNA Probes