monozygotic twins


Also found in: Dictionary, Thesaurus, Medical, Legal, Wikipedia.
Related to monozygotic twins: identical twins

monozygotic twins

[¦män·ō‚zī′gäd·ik ′twinz]
(biology)
Twins which develop from a single fertilized ovum. Also known as identical twins.
References in periodicals archive ?
(1999) found one set of verified monozygotic twins during pedigree analysis of approximately 200 domestic dogs (Canis familiaris).
The lifetime risk of BP in first-degree relatives of a bipolar patient is 40% to 70% for a monozygotic twin, and 5% to 10% for dizygotic twins and all other first-degree relatives (Muller-Oerlinghausen, Berghofer, & Bauer, 2002).
After all, if monozygotic twins reared apart are reared in environments that are sociologically similar then the significance of reported IQ differences loses explanatory importance.
The genetic determination of differences in intelligence: A study of monozygotic twins reared together or apart.
Acardiac twin or TRAP sequence is a rare complication of monochorionic twin pregnancies.1 Multiple pregnancy accounts for 1.5% of all pregnancies, acardiac twin incidence is 1 per 35,000 birth among 1% of monozygotic twins. It results from abnormal placental vascular anastomosis, blood from the normal pump twin reaches the perfused twin through arterioarterial anastomosis, flows through acardiac twin in reverse course, then returns to pump twin through venovenous anastomosis (TRAP).
This finding is consistent with the results of a previous perfusion study involving monozygotic twins. Taken together, the findings suggest that brain perfusion is not affected in CFS.
So far there have been only theoretical considerations against the experimental finding and dogma that monozygotic twins are genetically fully identical.
Unlike identical or monozygotic twins, they are simply siblings born at the same time.
Concordance for islet autoimmunity among monozygotic twins. N Engl J Med 2008; 359:2849-50.
Among the nine women described in the report who had transplantations of fresh ovarian tissue from their monozygotic twins, 12 pregnancies have occurred without assisted reproductive technology (ART) and eight healthy babies have been born to six of these women thus far, reported Dr.
The students could see that in one pair of monozygotic twins there was a very similar pattern (mostly yellow staining), whereas the other pair showed very distinct staining patterns.
A concordance rate of approximately 80% has been found among monozygotic twins, according to the study investigators.