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Genetic correlations between family members in the Children of Twins study design for both monozygotic (MZ, section a) and dizygotic (DZ, section b) families.
Note. Twin parents share 50% of their genes with their own children. They also share 100% or 50% of their genes with their co-twin depending on whether they are monozygotic or dizygotic twins. Finally, twins share either 50% or 25% of their genes with their niece/nephew.
