妈妈和儿子的dna不同吗

There is no doubt that Ji Feng's real girlfriend must be Tong Lei. Both Xiao Yuxuan and Ji Feng's mother Xiao Sumei think so. Because so far, Xiao Sumei had only met Tong Lei, and at that time in Manshi County, the parents of both parties had already met, which was regarded as acquiescence to the matter of the two children....