Scientists in the US have successfully removed the master gene responsible for the appearance of a butterfly, leading to unexpected changes in the wing patterns and colors of several of the insects.
美国科学家成功分离出负责蝴蝶外形的主宰基因，造成这种昆虫翅膀形状和颜色发生了意想不到的改变。
Master gene
原声例句
BBC 听力 2017年9月合集
英语百科
Hox gene
Hox genes (a subset of homeotic genes) are a group of related genes that control the body plan of an embryo along the cranio-caudal (head-tail) axis. After the embryonic segments have formed, the Hox proteins determine the type of segment structures (e.g. legs, antennae, and wings in fruit flies or the different types of vertebrae in humans) that will form on a given segment. Hox proteins thus confer segmental identity, but do not form the actual segments themselves.
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