DNA, RNA, and Chromosomes

How much DNA is in a typical human cell?

If the DNA in a single human cell were stretched out and laid end-to-end, it would measure approximately 6.5 feet (2 meter). The average human body contains 10 to 20 billion miles (16 to 32 billion kilometers) of DNA distributed among trillions of cells. If the total DNA in all the cells from one human were unraveled, it would stretch to the sun and back more than five hundred times.


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