Примери за dizygotic

• Concordance rates differed significantly across monozygotic and dizygotic twin pairs for broadly defined self-reported anorexia nervosa and bulimia nervosa.

• We report here such a concurrence in dizygotic twins conceived by in-vitro fertilisation.

• These studies compare the occurrence of an illness in monozygotic and dizygotic sets of twins.

• The marked progression in the dependence of monozygotic, dizygotic and trizygotic rates on maternal age underlines the importance of this factor in multiple birth studies.

• Therefore, monozygotic twins should be concordant for inherited traits approximately twice as often as dizygotic twins.

• Of the complete pairs, 3269 pairs were monozygotic, 9010 pairs dizygotic, and 128 pairs of unknown zygosity.

• However, while there is little variation in the monozygotic twinning rates in most of the regional groups, the dizygotic twinning rates vary considerably.

• All the twin pairs thought to be dizygotic were proved to be so with a difference in one or more of the blood groups.

• If the twins are dizygotic, there is only a 10% probability that the second twin will develop the disorder.

• In the absence of such findings it may be that one link between dizygotic twinning and reproductive potential may simply be high coital rates.

• The monozygotic twin sample comprised five male and five female pairs and the dizygotic twin sample three male and three female pairs.

• Dizygotic twinning is associated with maternal age and perhaps with social class.

• It is generally accepted that the most powerful of the designs is the twin study, using either genetically identical (monozygotic) twins, or fraternal (dizygotic) twins.

• Monozygotic twins share 100% of their genes, whereas dizygotic twins share on average only 50%.

• Correlations were a little higher in monozygotic twins than dizygotic.