There are two subclusters of A which are distinguished by the synonymous mutation T29095C. In the T-allele subcluster, four Chinese individuals (from the southern coastal Chinese province of Guangdong) carry the ancestral genome, while three Japanese and two American patients differ from it by a number of mutations. These American patients are reported to have had a history of residence in the presumed source of the outbreak in Wuhan. The C-allele subcluster sports relatively long mutational branches and includes five individuals from Wuhan, two of which are represented in the ancestral node, and eight other East Asians from China and adjacent countries. It is noteworthy that nearly half (15/33) of the types in this subcluster, however, are found outside East Asia, mainly in the United States and Australia.
怎么知道一定是大妈呢？可能是猥琐男啊。既然身份都是做假，性别也可能做假。
也许是个抠脚的大汉，待在一个寒酸简陋到连一件像样的家具都没有的的地下室里，没有同事朋友同学邻居，没有正常的社交圈，每天就是带着任务刷论坛发帖子赚几毛钱，就这样，还能幻想自己是成功人士，有趣吧？赤贫阶层里的成功人士？
为什么能产生这种幻觉呢？因为身边的人（网评员们）都和他一样，从小到大从来都在赤贫阶层里，穷到连想象力都缺乏，眼皮子太浅，一个电视机，美国最便宜的家用电器电子产品，就觉得是炫富？想像也是，要不是穷成这样，又没有正经的学历工作，何必为了几毛钱做网评员呢。
想起来了，她肯定是包了一架私人的大灰机灰回去了。
我觉得她是50pct of each
你个白痴不会自己去读论文吗，不知道什么叫ancestral genome吗，人家文章写的很清楚了只不过本着一种科学态度来探讨。
不过目前看来这个mutation好可怕一种mutation可以强烈感染一个地方的人
https://www.pnas.org/content/early/2020/04/07/2004999117
There are two subclusters of A which are distinguished by the synonymous mutation T29095C. In the T-allele subcluster, four Chinese individuals (from the southern coastal Chinese province of Guangdong) carry the ancestral genome, while three Japanese and two American patients differ from it by a number of mutations. These American patients are reported to have had a history of residence in the presumed source of the outbreak in Wuhan. The C-allele subcluster sports relatively long mutational branches and includes five individuals from Wuhan, two of which are represented in the ancestral node, and eight other East Asians from China and adjacent countries. It is noteworthy that nearly half (15/33) of the types in this subcluster, however, are found outside East Asia, mainly in the United States and Australia.