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82457acb1a As a mom of identical twin boys (verified by DNA testing) who are not identical, I can tell you that these people are wrong, in small part because they do not take into account mirror twinning, Twin-to-Twin Transfusion Syndrome, mitochondrial DNA, the difference between developmental and genetic characteristics, and how genes in the DNA express themselves once the one egg divides into two. One theory is the egg ovulated by maternally mature women (Moms over 35) is not as flexible as it is in younger moms. Articles by Allen, F. How Identical Twins are Not Identical There are two main factors that cause identical twins not to be truly identical: Identical twins share the same DNA - but do not have identical DNA. The female twin would be afflicted with Turner Syndrome, characterized by short stature and lack of ovarian development. Multiple pregnancies are usually delivered before the full term of 40 weeks gestation: the average length of pregnancy is around 37 weeks for twins. Best answer: Too much. One way to tell the difference is to have the twins DNA tested. However. He already notified the cop that he had a gun and was licensed.
show more I'm born 1990 and I listened to a wide range of music growing up. just as with any other siblings. In some cases the defects may arise early in development - after fertilization, but either before or after the twinning occurs. --Torey . Castile had no warrants and no serious criminal record, so there's no reason to believe he would just start shooting a cop over a broken taillight. the umbilical cords of monoamniotic twins can become entangled. Monozygotic twins are genetically identical unless there has been a mutation in development. Lynn Bry, MadSci Admin. and these twins are therefore also known as dizygotic. Therefore:Two girl twins can be either identical or fraternal (monozygotic or dizygotic).Two boy twins can be either identical or fraternal (monozygotic or dizygotic).A set of boy/girl twins can only be fraternal (dizygotic).