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The Minnesota Center for Twin and Family Research (MCTFR) is a series of behavioral genetic longitudinal studies of families with twin or adoptive offspring conducted by researchers at the University of Minnesota. [1] It seeks to identify and characterize the genetic and environmental influences on the development of psychological traits.
Thomas J. Bouchard Jr. (born October 3, 1937) is an American psychologist known for his behavioral genetics studies of twins raised apart. He is professor emeritus of psychology and director of the Minnesota Center for Twin and Adoption Research at the University of Minnesota.
He returned to the University of Minnesota and eventually became full professor there in 1992. [ 3 ] He was elected president of the Behavior Genetics Association in 2002 [ 4 ] and was president of the International Society for Twin Studies from 2008 to 2010.
The power of twin designs arises from the fact that twins may be either identical (monozygotic (MZ), i.e. developing from a single fertilized egg and therefore sharing all of their polymorphic alleles) or fraternal (dizygotic (DZ), i.e. developing from two fertilized eggs and therefore sharing on average 50% of their alleles, the same level of genetic similarity found in non-twin siblings).
All except one white adopted child was adopted in-state. Black and interracial children came from twelve states; Asian and indigenous American children came from Minnesota as well as from Korea, Vietnam, Canada and Ecuador. As Scarr & Weinberg (1976) note, transracial adoption studies only control for family environment, not social environment.
Nancy L. Segal was born a twin in Boston, Massachusetts, in 1951.She received a B.A. from Boston University (psychology, with honors and English literature, double major, 1973), a M.A. from the University of Chicago (Division of Social Sciences, 1974), and was awarded a Ph.D. from the University of Chicago (Committee on Human Development, 1982).
Twin studies are studies conducted on identical or fraternal twins. ... Minnesota Center for Twin and Family Research; N. Peter B. Neubauer; T. Three Identical Strangers;
The University of Minnesota was founded in Minneapolis in 1851 as a college preparatory school, seven years prior to Minnesota's statehood. [12] It struggled in its early years and relied on donations to stay open from donors, including South Carolina Governor William Aiken Jr. [21] [22]