A “53” form of these hormones is a major product formed in the 13-hydroxylation pathway. Pro·hexa·dione inhibits the synthesis of these hormones by antagonizing a namesake 3-oxidase. Defects in negative regulators of these hormones, such as La and Cry, induce the generation of “slender” (-5[1])constitutive response mutants. The synthesis of these hormones begins with the conversion of GGPP to ent-kaurene. These hormones induce aleurone (“al-YOO-rone”) cells to release (*) alpha-amylase. These hormones act against abscisic acid to break seed dormancy and promote germination. These hormones, which are named for a fungus that causes foolish seedling disease in rice plants, target the meristem to initiate internodal growth. For 10 points, name these stem-elongating hormones abbreviated as GAs. (-5[1])■END■ (10[2])