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Fraternal twins can happen unexpectedly or may run in the family. ... “About 1 in 90 births are twins, of the twins born, 3 out of 4 are fraternal sets” Horner (2001). Fraternal twins can be very easily identified because of the fact they do not look alike and may have very different personalities. There have also been many studies of disorders in twins and several myths and stories about twins.
Many people do not know much about fraternal twins, even though they are the most common type of twins. “Fraternal (dizygotic or two-egg) twins result when two different eggs are fertilized by two different sperm cells…” Segal (1999). ... I still believe that fraternal twins still share a special bond. The Gale Encyclopedia of Children and Adolescence (1998) said, “fraternal twins may be of the same or of different sex…”. ... Fraternal twins can also be conceived at two “different times and occasionally by different fathers” Wright (1997). Many people wonder why fraternal twins do not look alike. A reason why fraternal twins do not resemble each other like identical twins is because they “share 50 percent of their genes” whereas “identical twins share 100 percent of their genes” DeAngelis (2002). There are several different traits of mothers who bear fraternal twins. The “mothers of fraternal twins are taller and heavier… than mothers of identical twins and mothers of singletons” Segal (1999). There has also been “some evidence that fraternal twins occur more often in lower social class, partly because family sizes are larger” Segal(1999). Mothers with larger families and more children tend to be the ones to conceive the fraternal twins, but “fraternal twins are likely to be among the last-born children in the family” Segal (1999).
Approximate Word count = 1311
Approximate Pages = 5.2
(250 words per page double spaced)
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