In normal conversation, if I'm to say "S-- entence" you won't hear that as "S-- entence."
在正常对话中,如果我说"句-句子",你不会听成"句--子"
In a normal cell DNA that DNA in the normal cell - this DNA gets cut by the restriction enzyme, so the sickle gene ends up - so that hemoglobin gene ends up in two pieces.
一个正常细胞的DNA,正常细胞里的DNA,会被限制酶所剪切,因此镰状血红蛋白基因--,不对,是正常血红蛋白基因被切成两段
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