Why Does Some DNA Self-Destruct?

Mitochondrial DNA is a lot more selective that we thought. Here’s why mom (and not dad!) plays a crucial role in a baby’s DNA development.

How A Baby Can Have 3 Biological Parents http://bit.ly/29w7Dtn
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Ubiquitinated Sperm Mitochondria, Selective Proteolysis, And The Regulation Of Mitochondrial Inheritance In Mammalian Embryos.
http://www.ncbi.nlm.nih.gov/pubmed/10906068
“The strictly maternal inheritance of mitochondria and mitochondrial DNA (mtDNA) in mammals is a developmental paradox promoted by an unknown mechanism responsible for the destruction of the sperm mitochondria shortly after fertilization.”

Mitochondrial DNA
https://ghr.nlm.nih.gov/mitochondrial-dna
“Mitochondria are structures within cells that convert the energy from food into a form that cells can use. Although most DNA is packaged in chromosomes within the nucleus, mitochondria also have a small amount of their own DNA. This genetic material is known as mitochondrial DNA or mtDNA.”

Age Confirmed For ‘Eve’, Mother Of All Humans
http://www.livescience.com/10015-age-confirmed-eve-mother-humans.html
“A maternal ancestor to all living humans called mitochondrial Eve likely lived about 200,000 years ago, at roughly the same time anatomically modern humans are believed to have emerged, a new review study confirms.”

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