dizygotic twins

Also found in: Thesaurus, Medical, Legal, Encyclopedia, Wikipedia.
Related to dizygotic twins: fraternal twins, Monozygotic twins

di·zy·got·ic twins

n., pl. gemelos dicigóticos, mellizos de embriones producidos por dos óvulos.
References in periodicals archive ?
The studies of asthma and hay fever suggested that the prevalence of having both conditions was high (32%) and that they were more likely to occur together in monozygotic twins than they were in dizygotic twins.
By analysing data from a genome-scale study of DNA methylation in monozygotic and dizygotic twins, researchers identified genomic regions at which the epigenetic similarity of monozygotic, or identical, twins are substantially greater than can be explained by their genetic identity.
2] Previous studies have shown that the concordance rate of monozygotic twins with psoriasis is greater than that of dizygotic twins,[3],[4] with genetic factors underpinning 66-90% of the variation in risk of developing psoriasis.
By comparing the relative similarities among monozygotic and dizygotic twins raised in the same household, it became possible to calculate directly the degree to which a variable of interest (intelligence, height, aggressive behavior) could be attributed to genetic versus environmental factors.
The concordance of type 2 diabetes in mono-zygotic twins is ~70% compared with 20-30% in dizygotic twins.
However, the incidence of dizygotic twins is on the increase.
Median, Confidence Interval (CI), Intrapair Variance of Displacement Speed (VDS) and Partial Correlations Controlling for Age (r), Height, Body Mass, Displacement Speed (DS) and the Heritability of: (a) Monozygotic and Dizygotic Twins of Both Sexes; (b) Female Monozygotic and Dizygotic Twins; and (c) and Male Monozygotic and Dizygotic Twins.
The study was carried out in a population of 59 preterm infants with GA [less than or equal to] 30 weeks and BW < 1500 g; 21/59 were dizygotic twins (the study population does not include monozygotic twins).
Dizygotic twins, as they're called - identical twins are monozygotic - happen much more frequently and are more likely to be related to heredity.
Dizygotic twins are no more alike genetically than regular siblings, on average sharing 50 percent of their genes.
This study also concluded that in monozygotic twins, concordance for idiopathic scoliosis is much higher than in same sex dizygotic twins.