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Zygosity diagnosis; questionnaire; discriminant function analysis.

By: Ooki, S.
Contributor(s): Yamada, K | Asaka, A.
Subject(s): Zygosity diagnosis | questionnaire | discriminant function analysis In: Acta Geneticae Medicae et Gemellologiae: twin research 39(1)Summary: Subjects were 189 twin pairs, 165 MZ and 24 same-sexed DZ, who entered the junior high school affiliated to Tokyo univerisity (Sample T), and 93 twin pairs, 71 MZ and 22 same-sexed DZ, who were registered by Kinki university (sample K). The zygosity was previously indentified by many genetic markers, and this study aimed at zygosity diagnosis by by questionnaire. The latter included three questions: "How are you alike", "How often are you mistaken ", and "By whom are you mistaken?". According to the degree, 1-3 points, 1-3 points, and 1-4 points were given for each question, and the sum of the points of each pair of twins was calcuted. Zygosity was determined by the sum of points, distributed from 6 to 20.
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Journal Indira Gandhi Rashtriya Manav Sangrahalaya
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Subjects were 189 twin pairs, 165 MZ and 24 same-sexed DZ, who entered the junior high school affiliated to Tokyo univerisity (Sample T), and 93 twin pairs, 71 MZ and 22 same-sexed DZ, who were registered by Kinki university (sample K). The zygosity was previously indentified by many genetic markers, and this study aimed at zygosity diagnosis by by questionnaire. The latter included three questions: "How are you alike", "How often are you mistaken ", and "By whom are you mistaken?". According to the degree, 1-3 points, 1-3 points, and 1-4 points were given for each question, and the sum of the points of each pair of twins was calcuted. Zygosity was determined by the sum of points, distributed from 6 to 20.