In monozygotic twins the impact of genotypes ( i . e . factors ( 1 ) and ( 2 ) is much stronger than in dizygotic twins.
22.
Evidence from twin studies show that concordance rates for alcoholism are higher for monozygotic twins than dizygotic twins 76 % for monozygotic twins and 61 % for dizygotic twins.
23.
In one such example, Vanscoy et al . compare lung function between monozygotic and dizygotic twin pairs, as well as siblings with cystic fibrosis ( CF ).
24.
As of 2013, the cohort was predominately female ( 83 % ) and middle-aged or older, with about an equal division of monozygotic and dizygotic twins.
25.
Studies of dizygotic twins of the late 1990s support this idea, particularly with regards to primary gyri and sulci, whereas there is more variability among secondary and tertiary gyri.
26.
The relatively low concordance between dizygotic twins brought up together suggests that shared family environmental effects are limited, although the ability to detect them has been limited by small sample sizes.
27.
:Citation : " " It is suggested that among dizygotic twins born to married white women in the U . S ., about one pair in 400 is bipaternal.
28.
One limited study on monozygotic and dizygotic twins claims that genetic variation can have an effect on reactions to unfair offers, though the study failed to employ actual controls for environmental differences.
29.
If the monozygotic twins resemble each other much more closely than the dizygotic twins, then it is likely that genetics play a strong role in the development of the trait of interest.
30.
The episode ends when Robin goes into labor and via a caesarian section gives birth to dizygotic twins-a human looking girl with a forked tongue, and a reptilian boy with blue human-like eyes.
