title: Partial trisomy 1 due to a "shift" and probable location of the Duffy (Fy) locus.
abstract: Transposition of 1q31-1q32 from the q to p arm in a parent followed by crossing over resulted in a child with a duplication of this region. Concomitant C- and GTG-banding and genotyping were used to position the single crossover and to localize Fy to 1q2.
mesh_terms: D000015:Abnormalities, Multiple / Q000235:genetics; D000328:Adult; D001789:Blood Group Antigens; D002874:Chromosome Mapping; D002900:Chromosomes, Human, 1-3; D003434:Crossing Over, Genetic; D004375:Duffy Blood-Group System; D005260:Female; D006801:Humans; D007223:Infant; D007962:Leukocytes / Q000648:ultrastructure; D008297:Male; D012867:Skin / Q000648:ultrastructure; D014314:Trisomy
chemical_list: D001789:Blood Group Antigens; D004375:Duffy Blood-Group System