[blam]

"It was also discovered that in one case, mitochondrial DNA had been passed down from the father, showing that so-called 'parental leakage' is not as rare as previously believed."

HUH?

[Fred Nerks]

http://genetics.thetech.org/ask-a-geneticist/mtdna-comes-only-mom

“... There was a bit of hubbub a few years back about the possibility of mtDNA coming from dad too. But lots of work since then has shown this was an incredibly rare event. The exception that proved the rule.”