The Jim twins were just one of 137 sets of separated twins Bouchard tested. When they compared the twins' IQ scores, Bouchard and his team reached a surprising conclusion.
They concluded that intelligence was mostly connected to genes rather than to training or education. It seemed the differences in family and environment had little effect.
However, genes can't control everything, argues geneticist Danielle Reed, who also studies twins.
Reed's research shows that though nothing can truly change our DNA, environmental differences that a child experiences before birth and in their first year can sometimes affect the way the DNA behaves, making even identical twins into very different people.
"What l like to say is that Mother Nature writes some things in peneil and some things in pen," she explains. Things written in pen you can't change. That's DNA. But things written in pencil you can.
吉姆雙胞胎隻是布沙爾測試的137對分離雙胞胎中的一例。當他們比較這對雙胞胎的智商分數時，Bouchard和他的團隊得出了一個令人驚訝的結論。
他們的結論是，智力主要與基因有關，而不是與訓練或教育有關。家庭和環境的差異似乎沒有什麼影響。
然而，同樣研究雙胞胎的遺傳學家丹妮爾·裡德認為，基因不能控制一切。
裡德的研究表明，雖然沒有什麼能真正改變我們的DNA，但孩子在出生前和出生第一年所經曆的環境差異，有時候會影響DNA的行為方式，甚至使同卵雙胞胎會變成截然不同的人。
“我想說的是，大自然母親用鉛筆寫一些東西，也用鋼筆寫一些東西，”她解釋說。用鋼筆寫的東西是無法改變的。這是DNA。但用鉛筆寫的東西你可以。
#分享新生活# #今日頭條# #今日頭條微頭條# #我要上 頭條# #頭條#
