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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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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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). Twin studies show a higher concordance among monozygotic twins (85%) than among dizygotic twins (21%). Like dizygotic twins, ordinary siblings also share approximately half of their genes; genetically, dizygotic twins are ordinary siblings. |
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