knockout mouse

https://doi.org/10.1351/goldbook.13366
Mouse produced from embryonic cells containing DNA that has been genetically engineered so that it does not express a particular gene or group of genes.
Source:
PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1199 [Terms] [Paper]