However, if one monozygotic twin had insomnia, their twin was more likely to have insomnia than if they were dizygotic twins
," he said.
, in contrast, share on average 50% of their segregating genes.
Irritable bowel syndrome (IBS) was reported by 117 pairs of monozygotic twins and 164 pairs of dizygotic twins
on questionnaires completed by 6,060 twin pairs living in Virginia.
The corresponding SD values for the dizygotic twin
cases ranged from 2.
Our study provides evidence that the rate of concordance in dizygotic twins
may have been seriously underestimated in previous studies, and the influence of genetic factors on the susceptibility to develop autism overestimated.
In contrast, no concordance for autism was noted in dizygotic twin
pairs and only 10% were concordant for some form of cognitive, social, or language deficit.
Data were collected from monozygotic and dizygotic twin
pair members of the Vietnam Era Twin (VET) Registry who responded to the VA's Survey of Health in 1987.
We performed a genome-wide linkage analysis for loci affecting plasma cholinesterase activity on the dizygotic twin
A separate study of 98 mono- and dizygotic twin
pairs conducted by Jonas Halfvarson, M.
However, the extent to which baseline concentrations of CRP and SAA are genetically determined is of considerable interest, and we report here, for the first time, values in large well-matched cohorts of monozygotic (MZ) and dizygotic twins
The presence of a genetic factor in schizophrenia is well documented by twin studies and adoption studies: Concordance rates are significantly higher among monozygotic than dizygotic twins
, and prevalence of the disorder is higher among biologic than adoptive relatives of probands.
Genetic effects on baseline values of C-reactive protein and serum amyloid A protein: a comparison of monozygotic and dizygotic twins
Don't be fooled into thinking that twins conceived through assisted reproductive technology (ART) necessarily are dichorionic, dizygotic twins
, said Dr.
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).
A well-conducted study involving 4,402 Vietnam War-era mono- and dizygotic twins
has shed light on the longstanding genes vs.