| Organism | Approximate genome size (bp) |
|---|---|
| Lambda (λ) bacteriophage | 50,000 |
| Escherichia coli (bacterium) | 4,640,000 |
| Saccharomyces cerevisiae (yeast) | 12,000,000 |
| Arabidopsis thaliana (plant) | 125,000,000 |
| Drosophila melanogaster (insect) | 170,000,000 |
| Homo sapiens (human) | 3,200,000,000 |
| Zea mays (corn) | 4,500,000,000 |
| Amphiuma (salamander) | 765,000,000,000 |