PT - JOURNAL ARTICLE AU - Hobolth, N. AU - Jacobsen, Petrea AU - Mikkelsen, Margareta TI - Partial trisomy 12 in a mentally retarded boy and translocation (12;21) in his mother AID - 10.1136/jmg.11.3.299 DP - 1974 Sep 01 TA - Journal of Medical Genetics PG - 299--303 VI - 11 IP - 3 4099 - http://jmg.bmj.com/content/11/3/299.short 4100 - http://jmg.bmj.com/content/11/3/299.full SO - J Med Genet1974 Sep 01; 11 AB - Cytogenetic studies of an infant with malformations and a peculiar appearance showed a partial trisomy of chromosome 12. The mother carried a translocation of the distal part of chromosome 12 onto the short arm of chromosome 21, with breakpoints most likely at 12q24 and 21p11.