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.
Quotes like a chimp's DNA is 95% identical to humans is very misleading. That particular comparison was almost certainly done on just the coding sequences, which is only ~10% of the genome. The noncoding DNA is much less conserved across species, and even between individuals of the same species.