EXHIBIT 2.1 AGREEMENT AND PLAN OF MERGER DATED AS OF DECEMBER 19, 1999Agreement and Plan of Merger • December 29th, 1999 • Pharmacia & Upjohn Inc • Pharmaceutical preparations • Delaware
EXHIBIT 2.2 STOCK OPTION AGREEMENT STOCK OPTION AGREEMENT, dated as of December 19, 1999 (the "Agreement"), by and between Monsanto Company, a Delaware corporation ("Issuer"), and Pharmacia & Upjohn, Inc., a Delaware corporation ("Grantee"). WHEREAS,...Stock Option Agreement • December 29th, 1999 • Pharmacia & Upjohn Inc • Pharmaceutical preparations • Delaware
