Genetically modified mouse
（重定向自Transgenic mice）
![A genetically modified mouse in which a gene affecting hair growth has been knocked out (left), shown next to a normal lab mouse.](/Images/godic/202502/17/Knockout_Mice5006-3003912.jpg")
![Transgenic mice expressing green fluorescent protein, which glows green under blue light. The central mouse is wild-type.](/Images/godic/202502/17/GFP_Mice_013912.jpg")
A genetically modified mouse (Mus musculus) is a mouse that has had its genome altered through the use of genetic engineering techniques. Genetically modified mice are commonly used for research or as animal models of human diseases.