The development of the adult optic lobe (OL) of Drosophila melanogaster is directed by a wave of ingrowth of the photoreceptors over a 2-day period at the outset of metamorphosis. which is accompanied by the appearance of the pupal-specific transcription factor Broad-Z3 (Br-Z3) and expression of early drivers in OL neurons. During this time. there are pulses of ecdysteroids that time ... https://www.graphikjunkie.com/product-category/ice-melter/