每日口說挑戰 基因遺傳真的會影響身高嗎？ (Is Height All In Our Genes?)

今日挑戰句子

In 2007, scientists compared height and DNA between more than 11,000 pairs of siblings and found that, across humans, 86% of height's variation can be explained by genetics. As traits go, this is very high; for comparison, genetics only explains about 26% of left-handedness.

2007 年，科學家將超過 11,000 對的手足身高與 DNA 進行比較。他們發現整個人類世界， 86% 的身高變化可從基因上做解釋。這個數字結果其實是相當高的；相比來說，基因只能解釋大約 26% 的左撇子成因。