As reported by the NYtimes in September, researchers have discovered that we have multiple genomes in our cells. The variance in genomes had previously been thought of as a result of technology limitations, but has recently been acknowledged as a state of being. A number of mechanisms account for this variance including mutations, pregnancy, and twins. “In 2012, Canadian scientists performed autopsies on the brains of 59 women. They found neurons with Y chromosomes in 63 percent of them. The neurons likely developed from cells originating in their sons.” This chimerism and mosaicism has a number of implications including variations in forensic analysis, cancer treatment, disease risk, and organ transplant, amongst others.