A time-sensitive genetic switch for sex-specific features of developing neurons

Researchers have identified that the precisely timed transcription of two genes named grim and reaper is responsible for the targeted death of neurons within the developing nervous system of female flies. This group of neurons normally survive in males and play a key role in the neural circuits underlying courtship song.

Source: https://medicalxpress.com/news/2025-11-sensitive-genetic-sex-specific-features.html