Sentences with phrase «of monozygotic twins»
In their study of monozygotic twin pairs in the Add Health sample, the associations of sleep duration with several outcomes including suicidal ideation, delinquency, and drug use were reduced to non-significance when genetic and shared environmental factors were accounted for in the model.
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Yet in this particular set of monozygotic twins, one sister had the symptoms and the other did not.
It examines a large sample of monozygotic twins in Denmark to see if their cultural activity was related to their teacher - given GPA, exam - based GPA, and rate of completing secondary school.
«Virtual twins share environments but not genes,» she says, «and that makes them the inverse of monozygotic twins reared apart.»
«Epigenetic Differences Arise During the Lifetime of Monozygotic Twins,» by Mario F. Fraga et al., Proceedings of the National Academy of Sciences, July 2005.
Also included in the project are Sophie and Polly, a pair of monozygotic twins who are so identical they have matching fingerprints meaning their DNA is virtually indistinguishable.
19 Table 5 documents that the number of monozygotic twin pairs concordant for transsexualism is greater than that of dizygotic twin pairs.
Twin designs of monozygotic twins, for example, share all their segregating genes, so in experimentation, differences seen in behaviors between the siblings would be directly attributed to the environmental risk factor.
While previous studies had found strong evidence for shared environment effects on attachment styles of twins and sibling - pairs, a study of Fearon, Shmueli - Goetz, Viding, Fonagy, and Plomin (2014) supports the assumption of a primary genetic influenced similarity in attachment style, which means that attachment styles of monozygotic twin pairs are more similar to each other than those of DZ or NT siblings.
The study's cohort of Quebec twins, which included 223 sets of monozygotic twins (with an identical genetic code) and 332 sets of fraternal twins, made it possible to determine whether the individual differences observed in proactive and reactive aggression were due to genetic or environmental factors.