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.
“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
“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
“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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