title: Alpha and beta satellite sequences on chromosome 21: the possible role of centromere and chromosome structure in nondisjunction.
authors: Department of Genetics, Stanford University, California 94305.
authors: H F
authors: HF
authors: Willard
mesh_terms: D001483:Base Sequence; D002503:Centromere / Q000648:ultrastructure*; D002891:Chromosomes, Human, Pair 21 / Q000648:ultrastructure*; D004276:DNA, Satellite / Q000235:genetics*; D006801:Humans; D009630:Nondisjunction, Genetic
chemical_list: D004276:DNA, Satellite