Fisher notes that not every stutterer in the Drayna study had the defective gene, meaning there must be a number of other genes tied to stuttering.
VOA: standard.2010.02.11
One way is to replace a gene that's defective in a disease.
其中之一是置换,导致某种疾病的缺陷基因
One way is to replace a gene that's defective in a disease.
其中之一是置换,导致某种疾病的缺陷基因
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