The REPLI-g Mitochondrial DNA Kit enables selective amplification of mitochondrial DNA from total DNA samples, without the need for prior mitochondrial DNA isolation. This kit provides DNA polymerase, buffers, and reagents for specific and uniform whole genome amplification from small samples of human and non-human mitochondrial DNA in total DNA samples. For amplification of non-human mtDNA, the REPLI-g Human mt Primer Mix needs to be substituted with an appropriate primer mix suitable for that species (not provided with the kit). The REPLI-g Mitochondrial DNA Kit is based on the multiple displacement amplification technology (MDA), that enriches for mitochondrial DNA with minimal contamination from nuclear DNA, thus avoiding the need for time-consuming isolation of mitochondrial DNA and increasing the sensitivity of downstream assays.