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Article

Infant zygosity can be assigned by parental report questionnaire data.

Twin research : the official journal of the International Society for Twin Studies - 1 Sept 2000

Price T S, Freeman B, Craig I, Petrill S A, Ebersole L, Plomin R

Abstract excerpt

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...

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PMID: 11035484
DOI: 10.1375/136905200320565391

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 5 Sept 2026. Manifest publication-graph-cohort-2026-09-05.1.

Source receipt: pubmed, retrieved 5 Sept 2026.

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