Article
Verification of self-report of zygosity determined via DNA testing in a subset of the NAS-NRC twin registry 40 years later.
Twin research and human genetics : the official journal of the International Society for Twin Studies - 1 Aug 2005
Reed Terry, Plassman Brenda L, Tanner Caroline M, Dick Danielle M, Rinehart Shannon A, Nichols William C
Abstract excerpt
The National Academy of Sciences -- National Research Council (NAS-NRC) twin panel, created nearly 50 years ago, had twin zygosity determined primarily via a similarity questionnaire that has been estimated to correctly classify at least 95% of twins. In the course of a study on the genetics of healthy ageing in the NAS-NRC twins, DNA was collected for genome-wide scanning and zygosity confirmation was examined...
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