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The other difference with birds is that males are the homogametic sex, with ZZ chromosomes, whereas females are the heterogametic sex, with ZW: https://en.wikip
by kibwen 4y ago
The other difference with birds is that males are the homogametic sex, with ZZ chromosomes, whereas females are the heterogametic sex, with ZW: https://en.wikipedia.org/wiki/ZW_sex-determination_system https://en.wikipedia.org/wiki/ZW_sex-determination_system
- matrix12 4y agoBut they are trigametic and not bigametic.