Unequal rate of monozygotic and like-sex dizygotic twin
birth: evidence from the Minnesota twin family study.
In the dizygotic twin
pairs, 16% were concordant for GERD, a significantly lower percentage.
The sequential cohort study included data from 749 monozygotic twin pairs and 687 dizygotic twin
pairs between the age of 8 and 17 and their parents.
Murray and his associates looks at the concordance rate for three psychiatric disorders in a total of 222 monozygotic or dizygotic twin
We estimated the influence of genetic factors on these markers in a cohort of 61 monozygotic and 103 dizygotic twin
pairs (mean age = 68 years, range = 49-86).
A female dizygotic twin
with a twin brother, compared with a female dizygotic twin
with a twin sister, has fewer spontaneous otoacoustic emissions (clicking sounds generated by the ear) (McFadden 1993) and less craniofacial symmetry (Boklage 1985), and exhibits more risk-taking behavior (Resnick et al.
Douglas Bremner reported data on 26 pairs of dizygotic twin
The probability that a dizygotic twin
with IBS would have a mother with IBS was greater than the chance that the twin would have a cotwin with IBS (Gastroenterology 121:799-804, 2001).
Large fluctuations were expected for dizygotic twin
pregnancies, because the informative SNP loci would consist of 2 categories, loci in which both fetuses were heterozygous (1) and loci in which only one of the twins was heterozygous (2) (Fig.
Data Source: A population-based twin study involving 54 monozygotic and 138 dizygotic twin
pairs born in 1987-2004 in which at least one of the twins met the diagnostic criteria for autism or autism spectrum disorder.
With time it became clear that this second sculpture court was in fact laid out as a mirror image of the first; each sculpture in the first room had a dizygotic twin
in the second that had been placed in a bilaterally symmetrical relation to the implied seam bisecting the gallery.
While both genetics and environment have a role to play in the relationship between height and cognition, environmental factors appear to be responsible for two-thirds of the height-intelligence correlation, according to research conducted on cross-trait (height and intelligence), cross-twin correlations between monozygotic and dizygotic twin