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If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is 6.6 × 109 bp, then the length of the DNA is approximately :(1) 2.7 meters (2) 2.0 meters (3) 2.5 meters (4) 2. 2 meters |
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Answer» (4) 2.2 meters |
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