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Chimeric Dizygotic Twins; Twin Study Summaries; News At Home and Abroad

Published online by Cambridge University Press:  21 February 2012

Nancy L. Segal*
Affiliation:
Department of Psychology, California State University, United States of America. [email protected]
*
*Address for correspondence: Nancy L. Segal, Department of Psychology, California State University, Fullerton, CA 92834, USA.

Abstract

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Chimeras, individuals whose genetically distinct cell lines originated from different zygotes, are attracting attention among twin researchers. This is because chimerism may occur more frequently than previously suspected, having been observed among 8% of dizygotic (DZ) twins and 21% of DZ triplets. The presence of separate cell lines in these twins may hold clues to disease susceptibility, developmental complications and histocompatibility features. Next, new twin research on physical development is offering fresh insights on height and hormones, height and education, and pelvic development. Finally, twins having twins, twins deserting the military and twins composing music raise new thoughts about reproduction, behavior and talent.

Type
News, Views and Comments
Copyright
Copyright © Cambridge University Press 2005