As the genome evolves and alters over time by mutation, the number of NUMT in the genome differs over the course of evolution. NUMT enters the nucleus and inserts in the nDNA at different stages of the time. Due to constant mutation and instability of NUMT, the resemblance of this genome stretch to the mtDNA varies widely across the kingdom Animalia and even within the certain genome. For instance, the latest number of NUMT recorded in the human genome is 755 fragments which range from 39 bp to almost the entire mitochondrial sequence in size. There are 33 paralogous sequences with over 80% sequence similarity and of a greater length than 500 bp. Moreover, not all the NUMT fragments in the genome are the result of mtDNA migration; some are the outcome of amplification after insertion. Old NUMTs are found to be more abundant in the human genome than the recent integrants, indicating that mtDNA can be amplified once inserted. Dayama et al. developed a high yield new technique for the exact detection of the number of NUMT in the human genome called "dinumt". This method enables her and her team members to identify NUMT insertions, of all sizes, in the whole genomes sequenced using paired-end sequencing technology with a greater sensitivity. They applied "dinumt "to 999 individuals from the 1000 Genomes Project and Human Genome Diversity Project (HGDP) and conducted an updated enrichment analysis in humans using these polymorphic insertions. Further investigation and genotyping of the discovered NUMT also analyses age of insertion, origin, and sequence characteristics. Finally they assessed their potential impact on ongoing studies of mitochondrial heteroplasmy.