نتایج جستجو برای: non genetic factors

تعداد نتایج: 2737069  

Journal: :Behavior genetics 2008
David C Rettew Irene Rebollo-Mesa James J Hudziak Gonneke Willemsen Dorret I Boomsma

The influence of non-additive genetic influences on personality traits has been increasingly reported in adult populations. Less is known, however, with respect to younger samples. In this study, we examine additive and non-additive genetic contributions to the personality trait of extraversion in 1,689 Dutch twin pairs, 1,505 mothers and 1,637 fathers of the twins. The twins were on average 15...

Journal: :مجله دندانپزشکی 0
اسفندیار اخوان نیاکی e. akhavan niaki

monozygotic twins are genetically identical individuals who can also be mirror image twins and the differences between them result from environmental factors. current study, monozygotic twins were analyzed in different dentitions of primary, mixed and permanent. as a conclusion, although genetic factors are naturally potent, environmental factors’ role can be increased and weaken the genetic fa...

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