GENE ACTIVATION. “Insect metamorphosis is hormonally regulated, and the most important hormones are the ecdysteroid 20-hydroxyecdysone (20E), which determines the successive moults, and the terpenoid juvenile hormone (JH), which represses the expression of adult features. Each hormone exerts its respective action through a cascade of transcription factors that transduce the hormonal signal to the effector genes.”
https://lnkd.in/e-GPevs