One in five cell-lines mutated a particular region of chromosome 20.
1/5的培养细胞在20号染色体上的特定区域发生突变。
They found two previously unknown genetic variants on chromosome 20 that substantially increased the risk of male pattern baldness.
他们在20号染色体上发现两个新的遗传变异，它们大大增加了男性型秃发的危险。
If you have both the risk variants we discovered on chromosome 20 and the unrelated known variant on the X chromosome, your risk of becoming bald increases sevenfold.
如果你的染色体上有两个基因变异：我们发现的位于20号染色体上的变异和人们以前就知道的X染色体上的变异，您患秃发的风险将增加七倍。
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