In the case of nonsymmetric conjoined twins, one is fairly well developed, but the other is severely underdeveloped, often tiny, and dependent on the larger twin for nutrition.
Other work has also found that adolescent MZ twin pairs spend more time together and share more friends than do DZ twin pairs (Rende et al, 2005), and that MZ pairs are more dependent on their co-twin than DZ pairs (Penninkilampi-Kerola et al, 2005).
They also discovered differences in expression between monozygotic twins which were dependent on genotype of the twin pair, such differences cannot be induced by these partial linkages and thus point to a gene environment interaction.
Therefore, in the model for the children's sample, the residual variances could also explain familial clustering expressed in a correlation between twins dependent on zygosity.
They were dependent on no one.
Authorities have not ruled out homicide as they investigate how twin brothers dependent on breathing ventilators died during a power outage in the Northern California town of Valley Springs.
"The female twin had married well and had it together, while the male twin was very dependent on mommy and daddy and was not successful in life," said Ms. Kleier.
The twinning direction, dependent on the ratio of lattice parameters c/a, is along [10¯11] when c/a<√3, but along the opposite direction when c/a>√3.
And this, remember, in a country dependent on foreign capital (because of the twin budget and trade deficits), with a poor productivity record and modest growth.
In addition, the twin regions were dependent on crystal orientation.
