1. The diploid human genome comprises 6.4 X 109 bp and fits into a nucleus that is 6 m in diameter. If base pairs occur at intervals of 0.34 nm along the DNA helix, what is the length of DNA in a human cell?

Arrange the following in the correct sequence, from earliest to most recent, in which these plant traits originated. 1. sporophyte dominance, gametophyte independence 2. sporophyte dominance, gametophyte dependence 3. gametophyte dominance, sporophyte dependence a) 1 → 2 → 3 b) 2 → 3 → 1 c) 2 → 1 → 3 d) 3 → 2 → 1 e) 3 → 1 → 2