| Expected phenotype of offspring | Constant white | 3 red:1 white | 15 red:1 white | 63 red:1 white | Constant red | |
| The F2 genotype distribution | 1 rrrrrr | 6 rrrrrR | 12 rrrRrR | 8 rRrRrR | 37 | 3 rrrrRR |
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| 12 rrrRRR | |
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| 15 rrRRRR | |
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| 6 rRRRRR | |
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| 1 RRRRRR | |
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| 1 | 6 | 12 | 8 | 37 | ∑ = 64 |