Pericentric inversion of chromosome 21. A possible further cytogenetic mechanism in mongolism.
GRAY
J E
JE
MUTTON
D E
DE
ASHBY
D W
DW
D002875:Chromosomes; D002891:Chromosomes, Human, Pair 21; D020732:Cytogenetic Analysis; D004314:Down Syndrome / Q000235:genetics*; D006801:Humans
CHROMOSOMES; MONGOLISM/genetics