Term Name:	ecdysone-mediated polytene chromosome puffing
Synonyms:
Definition:	The decondensing (loosening) and swelling of the chromosomal sites of hormone-responsive genes on polytene chromosomes in response to increased production of the steroid hormone 20-hydroxyecdysone (ecdysone) in Drosophila larvae approaching pupation.
Ontology:	GO: Biological Process [GO:0035077]    QuickGO    AmiGO