时差N小时 | 近亲生育的危害

【新朋友】点击标题下面蓝字【可可英语】加关注【老朋友】点击手机右上角图标【转发分享】内容Prolonged interbreeding in any species can eventually lead to serious birth defects. Harmful genetic mutations are less likely to appear in large populations where individuals reproduce with random partners due to the wider variety of genetic mutations.长期来看，任何物种间的异血缘繁殖终会导致严重的先天缺陷。人口多的地方，个体间随机繁衍，恶性基因突变的几率降低很多，因为基因突变的种类更广泛。But in small, isolated populations where inbreeding is common, there’s a greater chance that related partners carry the same mutations.反之，在人口小且封闭的地方，近亲交配的现象十分普遍，有血缘的伴侣携带相同基因突变的几率更大。However, harmful eff ………………………………