Analysis of banding patterns in a case of ring chromosome 21

Claude‐Lise Richer, Naomi Fitch, Sharon Sitahal, M. Murer‐Orlando, P Jean, John M. Opitz

American Journal of Medical Genetics · 1981 · 21 citations · 35 references

Concepts

Abstract

Abstract An infant with psychomotor retardation, hypertonia, microphthalmia, buphthalmos, cleft palate, nail dysplasia, and hypospadias had the karyotype 46,XY, r(21)/45,XY,‐21. Cytogenetic analysis of prophase and prometaphase chromosomes showed the breakpoints of chromosome 21 were at p12 and q22.2.

References

35