♀️🧬➡️Z|W

#female heterogamety #ZW System #sex determination #meiosis #gametes

🦋ZW♀️→Sex

#insect sex determination #butterfly genetics #ZW System #female heterogamety #sex determination

ZW♀️ZZ♂️🧬

#ZW System #sex chromosomes #karyotype #female heterogamety #male homogamety

🐦ZW≠ZZ🥚

#bird sex determination #ZW System #female heterogamety #egg chromosome #avian genetics