Nature vs. Nurture

Topics: Twin, Twins, Zygote Pages: 3 (1107 words) Published: March 16, 2005
Today most interest in twins serves to determine whether traits come from ones environment or from genetics. However, throughout time, twins have been a constant source of entertainment and amazement for society. Twins differ very little, and according to an e-mail interview with Dr. Nancy Segal, the American attraction to them is due to our high value and appreciation of independency and personal differences. Segal believes the similarity of twins contrasts greatly with Americans values and this contrast sparks interest, almost to the nature of a circus sideshow. Because most singletons find the eerie alikeness of twins mystifying, myths and urban legends about twin behavior are not uncommon. For instance, the belief twins share more than just a special bond, but a type of telepathic connection, is commonly held. To explain this seeming telepathy, Piontelli writes:

It would not be unreasonable to hypothesize that an uncommonly early and constant exposure to each other's rhythms, bodily substances, behavioral patterns, and body language may foster a heightened reciprocal sensitivity in some twins. Some kind of familiarity with each others rhythms may already start before birth. This would not imply esoteric ‘telepathic understanding'. It may only suggest that twins, being constantly exposed to the manifestations of their co-twins, could sense from an unusually early age, and hence later perceive in an uncommon way, the signals of the other twin. (120)

So twins do not have extrasensory perception, but then, why are they so similar? Is it because they are raised in the same environment or is it simply because they share the same genes? Twins may be mystifying to most the general population, but they are very interesting to scientists studying genetics. Today twin study is the major source of information fueling the scientific debate of nature verses nurture. Nature refers to traits genetic or inherited from parents and nurture refers to all...
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