Your DNA is printed out as letters. How many thick books (500 pages) do you need?

How close can you get? Make your own guess and earn points before you look at the answer.

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The answer

2,000 books

About 2,000 books. A whole library in every cell.

How to get there

1. 500 pages × 3,000 = 1.5 million characters per book
2. 3 billion ÷ 1.5 million
3. = about 2,000 books

Source: Calculation with 3 billion base pairs (National Human Genome Research Institute)

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