![](/files/03/02/28/f030228/public/bd014e5cf10977d319edfaab72ea3d1a.gif) | Binet, Alfred, 144
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![](/files/03/02/28/f030228/public/bd014e5cf10977d319edfaab72ea3d1a.gif) | Biological determinism, 78. See also Behavioral genetics
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![](/files/03/02/28/f030228/public/bd014e5cf10977d319edfaab72ea3d1a.gif) | Birth defect, occurrence of twins as, 11, 86, 96
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![](/files/03/02/28/f030228/public/bd014e5cf10977d319edfaab72ea3d1a.gif) | Black Elderly Twin Study, 7
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![](/files/03/02/28/f030228/public/bd014e5cf10977d319edfaab72ea3d1a.gif) | Blackmore, Susan, 59
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![](/files/03/02/28/f030228/public/bd014e5cf10977d319edfaab72ea3d1a.gif) | Blacks. See Race
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![](/files/03/02/28/f030228/public/bd014e5cf10977d319edfaab72ea3d1a.gif) | Boklage, Charles E.
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![](/files/03/02/28/f030228/public/bd014e5cf10977d319edfaab72ea3d1a.gif) | and chimeras, 94
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![](/files/03/02/28/f030228/public/bd014e5cf10977d319edfaab72ea3d1a.gif) | and mirror imaging, 119
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![](/files/03/02/28/f030228/public/bd014e5cf10977d319edfaab72ea3d1a.gif) | study of schizophrenia in identical twins, 120-121
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![](/files/03/02/28/f030228/public/bd014e5cf10977d319edfaab72ea3d1a.gif) | study of twins vs . singletons, 97
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![](/files/03/02/28/f030228/public/bd014e5cf10977d319edfaab72ea3d1a.gif) | view of vanishing twins, 88-89
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![](/files/03/02/28/f030228/public/bd014e5cf10977d319edfaab72ea3d1a.gif) | Bouchard, Thomas J., Jr., 43-57, 58, 61, 62, 63, 141
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