About that chart of mutations. Just what does something like G7258A mutation even mean? Simply put, mitochondrial DNA has 16,569 base pairs and each one, in order of appearance, gets a number from base pair number "1" to base pair number "16,569." So the four numbers, "7852" is the location on that base pair on the mtDNA molecule. So what's up with the letters? Out of the four genetic letters used, A, T, C, and G, the "G" is showing that it is the normal amino acid in that base pair position. So in the full 16,569 mtDNA sequence of, position 7852 SHOULD be a "G" but on the chart that's not the case and here's how to know: G7258A is telling us that the normal "G" has mutated to "A".
So it means that at base pair position 7852 the normal guanine (G) has mutated to adenine (A). and it's saying that that mutation is rare in Humans but common in other primates. Hope no one minded that I went into this. Hopefully it provides some clarity on what one is looking at when they see why these are noteworthy mutations when it comes to comparing normal Human DNA with very rare Human DNA that has mutated more into the realm of other primates.