1. The problem statement, all variables and given/known data The length of DNA helix occupied by one nucleotide pair is 3.4 A (angstrom). A human has 10^14 cells and each human cell has about 6.4 x 10^9 nucleotide pairs of DNA. What is the length of double helix that could be formed from this amount of DNA in a human individual? 2. Relevant equations 3. The attempt at a solution I'm not sure if the below is correct, and that is why I'm asking here. The first sentence of the question was actually not part of this question, but it sounded like necessary information. I'm not sure if I was suppose to use this. Also, the lab was about finding the length of an unknown DNA molecule. This question doesn't have anything to do with the unknown, right? Thank you! (3.4 A)(6.4 x 10^9)(10^14)= 21.76 x 10^23 A About, 21.76 x 10^23 A of double helix can be formed from this amount of DNA in a human individual.