Dr. Gill and his team were able to come to this conclusion by extracting bacterialDNA from the feces of two volunteers.
吉尔博士和他的研究小组是通过提取两位志愿者粪便中的细菌 DNA 后得出这一结论的。
2
The techniques they use — removing DNA from bacterial cells, manipulating them using enzymes and returning them to a new cell — are similar to those used to create genetically modified foods.
We are family: Scientists suspect that a large DNA-based virus took up residence inside a bacterial cell more than a billion years ago to create the first cell nucleus.