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  2. Twin - Wikipedia

    en.wikipedia.org/wiki/Twin

    The human twin birth rate in the United States rose 76% from 1980 through 2009, from 9.4 to 16.7 twin sets (18.8 to 33.3 twins) per 1,000 births. [5] The Yoruba people have the highest rate of twinning in the world, at 45–50 twin sets (90–100 twins) per 1,000 live births, [6] [7] [8] possibly because of high consumption of a specific type of yam containing a natural phytoestrogen which may ...

  3. Twins and handedness - Wikipedia

    en.wikipedia.org/wiki/Twins_and_handedness

    Monozygotic twins result from the fertilization of one egg and the division of that single embryo forming two embryos. [4] However, just because a set of twins share the same genetic information, it does not mean they will exhibit the same traits and behaviors. There are different versions of a gene, which are called alleles. How a gene is ...

  4. Identical twins of the ‘Ask Reddit’ community recently shared what are the main differences between them and their sibling, showing that the dissimilarities can range from a unique mole to one ...

  5. Zygosity - Wikipedia

    en.wikipedia.org/wiki/Zygosity

    The word zygosity may also be used to describe the genetic similarity or dissimilarity of twins. [6] Identical twins are monozygotic, meaning that they develop from one zygote that splits and forms two embryos. Fraternal twins are dizygotic because they develop from two separate oocytes (egg cells) that are fertilized by two separate sperm.

  6. If Our Birth Charts Say So Much About Us, Why Am I So ... - AOL

    www.aol.com/birth-charts-much-us-why-201600955.html

    Twins lead different lives despite sharing similar birth times. "We will always have this cosmic wiring and for twins, it is really identical," Tali Edut says. "However, we are human beings with ...

  7. Inside the life of two sets of identical twins, who now live ...

    www.aol.com/news/inside-life-two-sets-identical...

    After identical twin sisters from Delaware married identical twin brothers from Tennessee, the children they are raising together share in a rare biological phenomenon. When identical twin sisters ...

  8. Twin study - Wikipedia

    en.wikipedia.org/wiki/Twin_study

    Gustav III of Sweden was the first to use identical twins in a comparative study of medical outcomes.. Twins have been of interest to scholars since early civilization, including the early physician Hippocrates (5th century BCE), who attributed different diseases in twins to different material circumstances, [3] and the stoic philosopher Posidonius (1st century BCE), who attributed such ...

  9. No Two Alike - Wikipedia

    en.wikipedia.org/wiki/No_Two_Alike

    No Two Alike: Human Nature and Human Individuality [1] is a book by psychology researcher Judith Rich Harris.It was published in February 2006. Harris attempts to explain why people are so different in personality, even identical twins who grow up in the same home.