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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 meters). The average human body contains 10 to 20 billion miles (16 to 32 billion kilometers) of DNA distributed among trillions of cells.

Sources: DuPraw, E. J. DNA and Chromosomes, p. v; McGrayne, Sharon Bertsch.365 Surprising Scientific Facts, Breakthroughs, and Discoveries, p. 116.

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1. Terms And Classification
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   2. How are animals and plants classified into groups and who began trie practice?
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   4. What is genetic engineering?
   5. What organism has the largest number of chromosomes?
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   8. What is DNA fingerprinting?
   9. How much DNA is in a typical human cell?
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