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dizygotic twins

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dizygotic twins [¦dī·zī′gäd·ik ′twinz]
(biology)
Twins derived from two eggs. Also known as fraternal twins.


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However, if one monozygotic twin had insomnia, their twin was more likely to have insomnia than if they were dizygotic twins," he said.
Bailey and Pillard (1991) published their study to considerable argument over their finding of a 52% concordance for homosexuality among monozygotic twins and 22% among dizygotic twins.
Interestingly, in patients younger than 50, concordance was dramatically different between monozygotic twins (where four of four twin pairs were concordant) and dizygotic twins (where only 2 of 12 twin pairs were concordant).
 
 
 
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