Monozygotic twins discordant for Ullrich-Turner syndrome

American Journal of Medical Genetics
E WeissI M Rosenthal


Ullrich-Turner syndrome occurred in one of a pair of female twins. The chromosome constitution of the affected twin was 45,X/46,XX and that of the normal twin 46,XX. Investigation of banded chromosomes, red cell antigens, HLA types, red cell enzymes, and serum proteins indicates monozygosity. The twins are discordant for height, pterygium colli, ovarian function, strabismus, dental eruption, external ear formation, hearing loss, and performance scores on the Wechsler Intelligence Test. All of these differences can be attributed to X monosomy in one cell line in the affected twin, presumably resulting from mitotic nondisjunction or anaphase lag early during embryonic development. Ten other pairs of apparently monozygotic twins discordant for the Ullrich-Turner syndrome have been reported previously, and the findings in these cases are reviewed.


Mar 1, 1975·The Journal of Surgical Research·A Van BeekE Zook
Mar 1, 1977·Behavior Genetics·D C Garron
Sep 1, 1976·Acta Radiologica: Diagnosis·K Rzymski, J Kosowicz
Mar 1, 1975·Journal of Medical Genetics·L KarpP J Fialkow
Jul 1, 1972·Acta paediatrica Scandinavica·A M Potter, L S Taitz
Apr 1, 1969·The Journal of Clinical Endocrinology and Metabolism·G T RossM B Lipsett
Jun 1, 1966·Journal of Medical Genetics·I B Shine, G Corney
Jun 1, 1966·Journal of Medical Genetics·J H EdwardsJ Kahn
Jan 1, 1980·American Journal of Medical Genetics·J S DeaconR Wintemute
Jan 1, 1965·Journal of Dental Research·R J GORLINB L SHAPIRO


Dec 24, 1997·Nature·W Henn, K D Zang
Feb 1, 1985·Journal of Medical Genetics·B DallapiccolaM Purpura
Mar 24, 2011·Twin Research and Human Genetics : the Official Journal of the International Society for Twin Studies·Yaniv Erlich
May 15, 2010·American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics : the Official Publication of the International Society of Psychiatric Genetics·Petra J G ZwijnenburgDorret I Boomsma
Oct 26, 2012·The Behavioral and Brain Sciences·Evan Charney
Mar 25, 2004·American Journal of Medical Genetics. Part a·T R RohrerH G Doerr
Oct 1, 1991·American Journal of Medical Genetics·P B KaplowitzJ E Spence
Dec 1, 1990·American Journal of Medical Genetics·E J PerlmanG M Hutchins
Mar 16, 2000·Clinical Endocrinology·N C NathwaniP C Hindmarsh

Related Concepts

Related Feeds

Auditory Perception

Auditory perception is the ability to receive and interpret information attained by the ears. Here is the latest research on factors and underlying mechanisms that influence auditory perception.