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Stability of DIR1 diploid cells under different growth conditions. Diploid cells were grown as shown and ploidy measured by cytological analysis.
| Growth conditions | No. Generations | % Haploid | % Diploid |
| FM | 30 | 3 | 73 |
| AM | 20 | 5 | 61 |
| FM + thymidine & uracil | 20 | 8 | 42 |
