Infant zygosity can be assigned by parental report questionnaire data
- 1 June 2000
- journal article
- Published by Cambridge University Press (CUP) in Twin Research
- Vol. 3 (3) , 129-133
- https://doi.org/10.1375/twin.3.3.129
Abstract
A parental report questionnaire posted to a population sample of 18-month-old twins correctly assigned zygosity in 95%of cases when validated against zygosity determined by identity of polymorphic DNA markers. The questionnaire was as accurate when readministered at 3 years of age, with 96% of children being assigned the same zygosity on both occasions. The results validate the use of parental report questionnaire data to determine zygosity in infancy. Twin Research (2000) 3, 129–133.Keywords
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