Table 2.
Gene content among sequenced eukaryotes
| Organism | Approximate number of genes | Reference |
| Yeast | 6,000 | [6,54] |
| Worm | 19,000 | [7] |
| Fruitfly | 14,000 | [8] |
| Mustard weed | 25,500 | [4] |
| Human | 25,000-40,000 | [9,10] |
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