| ACROSS | DOWN |
| 2 Humans, with over three million kbp, have this many times as many genes as C. elegans | 1 One of the simplest organisms with a genome of 750 kbp and 468 genes |
| 5 Between C. elegans (97,000 kbp) and D. melanogaster (137,000 kbp), the one with more genes (19000 to 14000) | 2 E. coli, with a genome of 4039 kbp, has about this many times the number of genes of Mycoplasma |
| 3 S. cerevisiae, with 6300 genes, has a genome size about this many times E. coli's. | |
| 4 A. thaliana, with a genome about ten times S. cerevisiae's, has about this many times as many genes as it does |