in situ hybridization studies using the chromosome 22-derived probe p22/34 , which identifies locus d22s9 , showed 16 % of the cells from the female patient to have silver grains on the proximal long arm of the normal chromosome 22 and 14 % on the extra chromosome , while 10 % of cells from the male had grains on the normal chromosomes 22 and an equal number on the extra chromosome , confirming the chromosome 22 origin of the extra chromosome in these patients .
C1708726
locus
C0007634
cells