"However, there have been some studies that claimed to have found some cases of paternal mitochondrial inheritance in humans (e.g. Schwarz & Vissing 2002), and it was proposed that in sexual reproduction, the tail of the sperm does enter the egg, and thus "paternal leakage" may occur."
"However, there has been only a single 'KNOWN' case of human paternal mitochondrial DNA transmission."
Sounds to me like scientists arrive at a theory and then endeavor to put forth only the proof in nature that supports their theory. Does anyone really believe that only one in six billion humans inherited paternal MtDNA?
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