妈妈和儿子的dna不同吗

This was already the second day that he went to Li Ruonan for help. However, the more Ji Feng thought about it, the more he felt that something was wrong. Li Ruonan asked himself to agree to her request. This thing didn't sound like anything. After all, it was like what he said at that time. Like that, Li Ruonan couldn't let Ji Feng go to the sky to pick the stars and give them to her, right?...