[Solved] The Glass-Steagall Act,before its repeal in 1999,prohibited commercial banks from A)issuing equity to finance bank expansion. B)engaging in underwriting and dealing of corporate securities. C)selling new issues of government securities. D)purchasing any debt securities. Culture Medium: A substance, often a gel or liquid, designed to support the growth, storage, or transport of microorganisms or cells. Colony: A distinct group of microorganisms, visible with the naked eye, on the surface of a culture medium. Mordant: A substance used in dyeing and printing that fixes the dye in the fabric, improving colorfastness; or, when used figuratively, it describes a sharply caustic or incisive expression. KOH Mount: A laboratory technique used to diagnose fungal infections, involving the application of potassium hydroxide to a sample to clear the material and make fungi more visible under a microscope.