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.
Mice and rats are very similar, and many people use the terms interchangeably. If anything, most of us tend to evaluate them based on their size â rats are just big mice. While generally true, size is by no means the only distinguishing characteristic.