📖 what
What is mitochondrial DNA?
Quick Answer
Mitochondrial DNA is the small ring-shaped genome inside mitochondria, the cell’s energy-producing structures. In humans it is inherited almost entirely from the mother.
The Full Story
Mitochondrial DNA, often called mtDNA, is separate from the DNA in the cell nucleus. Human mtDNA contains 37 genes, many of which help mitochondria make energy through cellular respiration. Because sperm mitochondria are usually not passed on to the embryo, mtDNA is inherited mainly through the maternal line. Scientists use mtDNA to study human ancestry, evolution and some inherited mitochondrial disorders.
Key Facts
1.Human mtDNA has 37 genes
2.It is usually inherited from the mother
3.Mitochondria have their own genome
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Suggested video title for this topic:
"The tiny DNA that tracks your maternal line"
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