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The expected and actual ratios of genotypes obtained following reciprocal crosses between the wild type (Col-0) and chx21+/–chx23–/– or chx21–/–chx23+/–
| Crosses (male×female) | Expected ratio | Observed ratio |
| Col-0 × chx21+/–chx23–/– | 1:1 (chx21+/+:chx21+/–) | 25:0 |
| Col-0 × chx21–/–chx23+/– | 1:1 (chx23+/+:chx23+/–) | 25:0 |
| chx21–/–chx23+/– × Col-0 | 1:1 (chx23+/+:chx23+/–) | 13:12 |
For each cross, the male parent is given first.
