Twin

             Everyone has, to some extent, a predetermined trait or traits that are imprinted in their genes. Understanding the role of our genetic inheritance requires that we know how genes express themselves. This is not to say that a single gene can represent a whole trait. Beatty, Marshall , and Rudd began this study to explain the effect that genes have on human traits (5). DNA establishes the way a person behaves and the actions they experience. Therefore a trait can lead to a chosen action and the effect is an experience based off of that trait.
             Beatty, Marshall, and Rudd found that genes determine the result of a person's life, and that life experiences are minute in the result of a person's character. For example, injunctions of parents, a book that was read, or a game that was played have equal effects on the outcome of a person's character (15). These researchers implied that despite being taught morals and values a person would act a certain way because their genes have already arranged it.
             No single gene determines a particular behavior. Behaviors are complex traits that are affected by the involvement of multiple genes. Although, having a genetic variant does not necessarily mean that a particular trait could develop (Lichtenstein Pedersen and McClearn 11). There is not a code for each particular trait, it relies on how the genes affect each other and if one may trigger another. .
             Researchers Beatty, Marshall, and Rudd presume that a person's genes play the utmost role in determining a child's behavior (5). In their study they concluded that "parents have relatively little effect on how children turn out, once genetic influence is accounted for". These researchers also stated "genes have a much greater influence on our personalities than previously thought, and parenting much less" (Beatty Marshall and Rudd 12). Their research has lead them to conclude that genes predetermine how a child is going to act.