Source(s): immigration nationality directorate border immigration uk border agency reference no: https://tinyurl.im/UEZro.
About 99% of mouse genes have a homolog in the human genome, and for 80% of these genes, the best match in the human genome has, in turn, its best match against the orthologous mouse gene in the conserved syntenic interval.
Further experiments by the same team showed that 98.5 percent of DNA sequences are shared by humans and chimps. The same methods showed that two humans share 99.9 percent of their DNA. In contrast, the DNA of humans and mice is only around 60 percent similar.