monozygotic

Of 5,597 monozygotic twin pairs where both were alive and had provided usable responses to CFS screening questions, we identified 140 pairs of twins who met preliminary inclusion criteria: born 1935-1985, classified as a monozygotic twin based on questionnaire responses

PLoS ONE Alerts: New Articles Andrea Byrnes et al. 2009

Therefore although I might call them "monozygotic" I wouldn't agree that they were "identical."

Identical Boy-Girl Twins 1 Dinosaur 2007

In "A Genetic Study of Male Sexual Orientation," a study that has now achieved almost as much renown as LeVay's, the Northwestern University psychologist Michael Bailey and Boston University's Richard Pillard compared fifty-six "monozygotic" twins (identical twins, from the same zygote, or fertilized egg), fifty-four "dizygotic" (fraternal) twins, and fifty-seven genetically unrelated adopted brothers.

Homosexuality and Biology 1997

In "A Genetic Study of Male Sexual Orientation," a study that has now achieved almost as much renown as LeVay's, the Northwestern University psychologist Michael Bailey and Boston University's Richard Pillard compared fifty-six "monozygotic" twins (identical twins, from the same zygote, or fertilized egg), fifty-four "dizygotic" (fraternal) twins, and fifty-seven genetically unrelated adopted brothers.

Homosexuality and Biology 1997

In the switched-baby cases Ms. Segal discusses, it is highly unlikely that the error would have been discovered were it not for the fact that the twins were monozygotic and thus had a striking physical resemblance.

Separated At Birth. Really. David Cesarini 2011

And most of us have probably ingested meat and dairy products from livestock cloned by natural reproduction (monozygotic siblings), mechanical embryo-splitting or even nuclear transfer from an embryonic donor cell into an enucleated oocyte.

The Cloned Cow Has Left the Barn Henry I. Miller 2010

Classical liberals (libertarians, basically) accept that only monozygotic twins are “created equal” and that even these will diverge as they mature.

The Volokh Conspiracy » 4. On a Bus in Kiev 2010

But births of monozygotic twins are rare, roughly one in 300.

Separated At Birth. Really. David Cesarini 2011

The mother assumed that she had given birth to fraternal twins (dizygotic, from two eggs) and not "identical" ones (monozygotic, two embryos developed from a single fertilized egg).

Separated At Birth. Really. David Cesarini 2011

And most of us have probably ingested meat and dairy products from livestock cloned by natural reproduction (monozygotic siblings), mechanical embryo-splitting or even nuclear transfer from an embryonic donor cell into an enucleated oocyte.

Europe Is Crazy About (Cloned) Food 2010