Jan 1, 2021
In Huge Shock, Mitochondrial DNA Can Be Inherited From Fathers
Posted by Raphael Ramos in categories: biotech/medical, genetics
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A piece of high school genetics, relied on for many sorts of genetic testing, has been found to have exceptions. Although mitochondrial DNA (mtDNA) is normally received from the mother, three families have been identified where people received some of their mtDNA, three-quarters in the most extreme case, from their father. The finding may change the way we treat mitochondrial diseases and brings genetic testing for maternal ancestry into question.
MtDNA exists separately from the rest of our DNA, inside the thousands of mitochondria within each cell, rather than the cell nucleus. It is so widely accepted as being from the motherâs side it is sometimes known as the Eve Gene, the idea being that it can be traced back to some primeval mother of all living humans. Testing of mtDNA is used to identify maternal ancestry.
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