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Zygosity partitioning of small twin samples
Acta Geneticae Medicae Et Gemellologiae
|January 1, 1985
Abstract:
When the Weinberg estimate of the proportion of monozygotic pairs is quite deviant from that in the source population, it is likely to be wrong because Weinberg's difference is much less stable than the zygosity proportions. A formula is proposed for the probability distribution of possible compositions of a small sample of twins based on sex concordance in the sample and zygosity proportions in the source population.