Monozygotic twins or unrelated stepchildren? On the relationship between economic psychology and behavioral economics. Journal ...
... twins become conjoined twins. Non-conjoined monozygotic twins form up to day 14 of embryonic development, but when twinning ... Monozygotic twins who share a placenta can develop twin-to-twin transfusion syndrome. This condition means that blood from one ... The children of monozygotic twins test genetically as half-siblings (or full siblings, if a pair of monozygotic twins ... Monozygotic twins can have markedly different epigenetic profiles. A study of 80 pairs of monozygotic twins ranging in age from ...
"Thanatophoric dysplasia in monozygotic twins". TheFetus.net. Archived from the original on December 12, 2008. Retrieved 2016-03 ...
An example is monozygotic twins. To have a complete picture of what is going on with the epigenetic tapestry of our cells, ... Epigenetics Editorial Board Wade, Nicholas (5 July 2005). "Explaining Differences in Twins - New York Times". The New York ...
Edwards JH, Dent T, Kahn J (June 1966). "Monozygotic twins of different sex". Journal of Medical Genetics. 3 (2): 117-123. doi: ... While no humans - not even monozygotic twins - are genetically identical, two humans on average will have a genetic similarity ... Machin GA (January 1996). "Some causes of genotypic and phenotypic discordance in monozygotic twin pairs". American Journal of ... January 2021). "Differences between germline genomes of monozygotic twins". Nature Genetics. 53 (1): 27-34. doi:10.1038/s41588- ...
Tomasz Dziedzic, Ewa Fabianska, and Zuzanna Toeplitz (2007). Handwriting of Monozygotic and Dizygotic Twins. Problems of ... Even identical twins who share appearance and genetics do not have the same handwriting. Characteristics of handwriting include ... "On the Discriminability of the Handwriting of Twins". J Forensic Sci.; 53(2):430-46. ...
In 2011, a case of monozygotic twins with divergent ROHHAD phenotypes was reported. One twin was affected with ROHHAD and ... "Monozygotic Twins Discordant for ROHHAD Phenotype". Pediatrics. 128 (3): e711-e715. doi:10.1542/peds.2011-0155. ISSN 0031-4005 ... developed symptoms, while the other twin developed normally. This report questioned the theory that ROHHAD is genetically ...
Gedda L, Sciacca A, Brenci G, Villatico S, Bonanni G, Gueli N, Talone C (1984). "Situs viscerum specularis in monozygotic twins ... Some identical twins-known as mirror image twins-can have a mirror-imaged anatomy, a congenital condition with the appendix ... "Unusual Types of Twins". Multiples of America. Archived from the original on 2 May 2014. Retrieved 30 April 2014. ...
One early case that drew attention to the syndrome was a report of monozygotic twin sisters with a ring 22, one of the first ... Lindenbaum RH, Bobrow M, Barber L (March 1973). "Monozygotic Twins with Ring Chromosome 22". Journal of Medical Genetics. 10 (1 ... recorded reports of a shared chromosomal anomaly between twins. Cat eye syndrome Emanuel syndrome Unique, Jeffries A, Hultén M ...
Monozygotic twins carry identical genomic information. Therefore, if they are discordant for a particular disease or phenotype ... Another limitation is recruiting a large enough cohort of discordant monozygotic twins with the disease of interest. ... Longitudinal studies using disease-discordant monozygotic twins gives the added benefit of ruling out genetic influences on ... including differences in disease-associated epigenetic marks between monozygotic twins, the rising incidence of type 1 diabetes ...
Critics of twin studies argue that they are based on false or questionable assumptions, including that monozygotic twins share ... Maudsley Bipolar Twin Study Minnesota Twin Family Study Twins Early Development Study NASA Twins Study The power of twin ... The classical twin design compares the similarity of monozygotic (identical) and dizygotic (fraternal) twins. If identical ... Not really identical: epigenetic differences in monozygotic twins and implications for twin studies in psychiatry. Haque FN, ...
Monoamniotic twins are always monozygotic (identical twins). Monochorionic-Diamniotic twins are almost always monozygotic, with ... Monochorionic twins are monozygotic (identical) twins that share the same placenta. If the placenta is shared by more than two ... Monochorionic twins occur in 0.3% of all pregnancies. Seventy-five percent of monozygotic twin pregnancies are monochorionic; ... If one twin dies in utero, blood accumulates in that twin's body, causing exsanguination of the remaining twin. In the case of ...
1984). "Situs viscerum specularis in monozygotic twins". Acta Genet Med Gemellol (Roma). 33 (1): 81-5. doi:10.1017/ ... twins. About 25% of individuals with situs inversus have an underlying condition known as primary ciliary dyskinesia (PCD). PCD ...
... however the monozygotic twins case studies indicate there is an epigenetic component. Synesthesia might also be an oligogenic ... a case study of discordant monozygotic twins". Neurocase. 8 (4): 338-342. doi:10.1076/neur.8.3.338.16194. PMID 12221147. S2CID ... a case study of discordant monozygotic twins". Neurocase. 8 (4): 338-342. doi:10.1076/neur.8.3.338.16194. PMID 12221147. S2CID ... twins While both twins had the same genome with the potential for phenotypic expression of synesthesia, only one had documented ...
... monozygotic twins born to normal and non consanguineous parents, presenting with an unusual facial appearance, cortical atrophy ... "Smith-Fineman-Myers syndrome in apparently monozygotic twins". American Journal of Medical Genetics. 79 (3): 205-8. doi:10.1002 ...
2000) reported a pair of monozygotic twins with Fryns syndrome discordant for severity of diaphragmatic defect. Both twins had ... Vargas JE, Cox GF, Korf BR (September 2000). "Discordant phenotype in monozygotic twins with Fryns syndrome". Am. J. Med. Genet ... Twin A lacked an apparent diaphragmatic defect, and at 1 year of age had mild developmental delay. Twin B had a left congenital ...
A case study of discordant monozygotic twins. Neurocase, 8, 338-342. Cheesman, J., & Merikle, P. M. (1986). Distinguishing ...
A more recent study, where 114 monozygotic twins and 80 dizygotic twins were analyzed for the DNA methylation status of around ... epigenetic differences in monozygotic twins and implications for twin studies in psychiatry". American Journal of Medical ... Dizygotic (fraternal) and monozygotic (identical) twins show evidence of epigenetic influence in humans. DNA sequence ... July 2005). "Epigenetic differences arise during the lifetime of monozygotic twins". Proceedings of the National Academy of ...
The classic twin study compares monozygotic and dizygotic twins. If the monozygotic twins resemble each other much more closely ... Monozygotic, or identical, twins share 100% of their genes, while dizygotic, or fraternal, twins share on average 50% of their ... Early twin studies were replicated later using twins with OCD meeting DSM criteria and ascertainment of probands, but only a ... Twin Research and Human Genetics. 8 (5): 450-458. doi:10.1375/twin.8.5.450. Pauls, David L. (2010). "The Genetics of Obsessive- ...
... monozygotic twins usually have exactly identical genomes. Scientists have focused on comparison studies of such twins for ... Bell, Jordana T.; Spector, Tim D. (1 March 2011). "A twin approach to unraveling epigenetics". Trends in Genetics. 27 (3): 116- ... evaluating the heritability of genes and the roles of epigenetics in divergences and similarities between monozygotic twins, ... Petronis, Arturas (1 July 2006). "Epigenetics and twins: three variations on the theme". Trends in Genetics. 22 (7): 347-350. ...
Chen H, Huang H, Chang T, Lai C, Soong Y (2006). "Pure XY gonadal dysgenesis and agenesis in monozygotic twins". Fertility and ...
An extreme case of this was seen where monozygotic female twins had extreme variance in expression of Menkes disease (an X- ... "Menkes disease with discordant phenotype in female monozygotic twins". American Journal of Medical Genetics. Part A. 167A (11 ... linked disorder) resulting in the death of one twin while the other remained asymptomatic. It is thought that X-inactivation ...
Mono-zygotic twin studies reveal 8-29% of changes between the twins' teeth is from the environment. Several studies of mono- ... Epigenetic markers differ the most in monozygotic twins who spend time apart or have a very different medical history. As twins ... Monozygotic twins provide information on epigenetic differences that are not from genetic factors. ... The rate of disease discordance between monozygotic twins is usually over 50%, including heritable diseases. This does not ...
A Japanese case study of monozygotic twins discordant for schizophrenia (one has the diagnosis while the other does not) draws ... Twin studies have shown that an identical twin has ~50% risk of also developing the disorder. Family studies indicate that the ... The average concordance rates are higher for identical twins than for fraternal twins and evidence also suggests that the ... A case report of monozygotic twins". Psychiatry and Clinical Neurosciences. 57 (3): 271-274. doi:10.1046/j.1440-1819.2003.01116 ...
Two monozygotic female twins had the same IRF6 mutation; however Twin A was born with a bilateral cleft lip, whereas Twin B had ... Both twins were diagnosed with VWS. The twins' father had lip pits alone and a family history of CLP, CP, CL, and/or lip pits. ... 1], OMIM Van der Woude Syndrome 2 Jobling R, Ferrier RA, McLeod R, Petrin AL, Murray JC, Thomas MA (2011). "Monozygotic twins ... This study is not the first case of different phenotypes occurring between monozygotic twins. Possible causes of phenotypic ...
"Ancient DNA reveals monozygotic newborn twins from the Upper Palaeolithic". Communications Biology. 3 (1): 650. doi:10.1038/ ... 2020) examined the remains of one adult male and two twin boys from a Gravettian site in Austria. All belonged to haplogroup Y- ...
... are identified as the earliest known case of monozygotic twins by Teschler-Nicola et al. (2020). A study on the genome of a ~ ... "Ancient DNA reveals monozygotic newborn twins from the Upper Palaeolithic". Communications Biology. 3 (1): Article number 650. ...
"Ancient DNA reveals monozygotic newborn twins from the Upper Palaeolithic". Communications Biology. 3 (1): 650. doi:10.1038/ ... At the same site, two twin boys were also found, both were assigned to haplogroup I*. Haplogroup IJ was in the Middle East and/ ...
... among monozygotic twins and a 30% one among dizygotic twins. In 2000, Bailey, Dunne and Martin studied a larger sample of 4,901 ... MZ' indicates identical twins with the same sets of genes and 'DZ' indicates fraternal twins where genes are mixed to an extent ... A 2008 study of all adult twins in Sweden (more than 7,600 twins) found that same-sex behaviour was explained by both heritable ... They found 20% concordance in the male identical or MZ twins and 24% concordance for the female identical or MZ twins. Self ...
Sep 1998). "Identical de novo mutation at the D4F104S1 locus in monozygotic male twins affected by facioscapulohumeral muscular ... "Extreme variability of expression in monozygotic twins with FSH muscular dystrophy". Neurology. 43 (2): 345-8. doi:10.1212/wnl. ... Distribution and degree of muscle weakness is extremely variable, even between identical twins. Musculoskeletal pain is very ...