dizygotic - Hutchinson encyclopedia article about dizygotic Printer Friendly
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twin
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twin

One of two young produced from a single pregnancy. Human twins may be genetically identical (monozygotic), having been formed from a single fertilized egg that splits into two cells, both of which became implanted. Nonidentical (fraternal or dizygotic) twins are formed when two eggs are fertilized at the same time.

In the US there has been a 52% increase in the number of twin births in the period 1980-97.
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However, twin studies have consistently shown low rates of concordance (5-8%) in monozygotic and dizygotic twins (Foltynie et al.
Pesticides and Parkinson's disease--is there a link? by Levy, Leonard S. / Environmental Health Perspectives
This estimate is based on studies that compared genetically identical, monozygotic twins to nonidentical, dizygotic pairs, for which the concurrence rate can be as low as 2% to 7% (19).
Women and autoimmune diseases by Rose, Noel R. / Emerging Infectious Diseases
3) By adding dizygotic (DZ) twins to a similar study setting, exploring genetic versus shared environmental influences, the components of familial aggregation would be possible.
The role of genetics and environment in lifting force and isometric ... by Battie, Michele C. / Physical Therapy
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