| Answer | Crossword Clue |
|---|---|
| OPERON | Unit of gene activity |
| polygene | a type of gene (a hereditary unit) |
| polygenes | POLYGENE, a type of gene (a hereditary unit) |
| polygeneses | POLYGENES, POLYGENE, a type of gene (a hereditary unit) |
| genes | GENE, a hereditary unit |
| ANNEXCHROMOSOME | Take over a gene unit? |
