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Sex reversal
| Female-producing temperatures | Male-producing temperatures | |
| XX (ZW) | Female (in accordance with genotype) | Female OR male (in discordance with genotype) |
| XY (ZZ) | Male OR female (in discordance with genotype) | Female (in accordance with genotype) |
The combination of genotypic and temperature-dependent sex determination allows a phenomenon known as sex reversal, where the phenotypic sex does not always agree with the genotypic directions.
