TOTAL DNA ON PLANET. “We estimate the total amount of DNA in the biosphere to be 5.3 × 10(31) (±3.6 × 10(31)) megabase pairs (Mb). This quantity corresponds to approximately 5 × 10(10) tonnes of DNA. This DNA is equivalent to the volume of approximately 1 billion standard (6.1 × 2.44 × 2.44 m) shipping containers.” 50 billion tons of DNA!
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