'Semi-identical' twins discovered

@article{Whitfield2007SemiidenticalTD,
  title={'Semi-identical' twins discovered},
  author={John A Whitfield},
  journal={Nature},
  year={2007}
}
Hermaphrodite reveals previously unknown type of twinning. 
1 Citations
The Mathematics (and Metaphysics) of Identical Twins
TLDR
This article will argue that a human being is present from the moment of conception on Aristotelian grounds, and then defend this claim from criticisms based on a number of findings in modern embryology. Expand

References

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A case of true hermaphroditism reveals an unusual mechanism of twinning
TLDR
A rare case of 46,XX/46,XY twins: Twin A presented with ambiguous genitalia and Twin B was a phenotypically normal male, demonstrating a third, previously unreported mechanism for twinning. Expand
Postzygotic diploidization of triploids as a source of unusual cases of mosaicism, chimerism and twinning.
TLDR
It is argued that dispermic zygotes, in contrast to digynic ones, are characterized by cytogenetic phenomenon described here as postzygotic diploidization of triploids (PDT), which could have an explanation for the broad spectrum of odd reproductive cytogenetics events and might provide additional alternatives and definite predictions. Expand