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10 lip 2024 · Monozygotic (MZ) twins are believed to arise from the fission of a single fertilized embryo at different stages. Monochorionic MZ twins, who share one chorion, originate from the splitting of the inner cell mass (ICM) within a single blastocyst.
1 sty 2020 · If two genetically distinct populations of cells were formed before repulsion, another distinct cellular differentiation event would have to occur in at least one of the resultant cell populations at the same embryological state in order to produce monozygotic triplets.
21 cze 2015 · By investigating the chromosomes labeling scheme and possible cell labeling combinations, we discover that monozygotic quadruplets may be two pairs of monozygotic twins where the pairs of twins are slightly different from one another.
gotic triplets in which one zygote splits and another does not in the same cohort of oocytes and under the same ovulatory conditions. Even more intriguing and equally unexplained by the repulsion theory is the occurrence of monozygotic triplets, in which a subse-quent and distinct cellular differentiation event would
13 sty 2021 · A new study in Nature Genetics used whole-genome sequencing of monozygotic twins, their parents, partners and offspring to identify and characterize early developmental mutations, as well as the...
7 sty 2021 · When DNA isolated from the blood of monozygotic twins is sequenced and compared, some of the differences seen may be due to somatic mutations in blood cells or their precursors. Such mutations...
1 lip 2014 · Different number of triplets or differential activation of copy genes have been implicated in the variable expression of diseases such as Steinert's myotonic dystrophy in MZ twins. Still there are few data concerning repeat expansion disorders in twins.
