这也是一种遗传畸形。
兄妹之间通婚会将缺陷基因两份拷贝都传递给下一代，他们所生育的后代容易产生各种遗传缺陷，例如图坦卡蒙的畸形足。
Married siblings are more likely to pass on twin copies of harmful genes, leaving their children vulnerable to a variety of genetic defects. Tutankhamun's malformed foot may have been one such flaw.
科学家可能已经取得了镰状贫血病治疗技术的一项重大进步。镰状贫血病是一种造成血细胞畸形的常见遗传病。
Scientists have taken a potentially important step toward a therapy for sickle cell disease, a common genetic disorder characterized by malformed red blood cells.
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