X0101 EFFECT 33 LIVE 2006-11-09 16:00:00

N-14

0000100334 AMERICAN CENTURY MUTUAL FUNDS, INC. 333-137741 0000100334 AMERICAN CENTURY MUTUAL FUNDS, INC. S000006193 NEW OPPORTUNITIES II C000017049 INVESTOR CLASS 0001040566 KOPP FUNDS INC S000000737 Kopp Emerging Growth Fund C000002131 Class I 0000100334 AMERICAN CENTURY MUTUAL FUNDS, INC. S000006193 NEW OPPORTUNITIES II C000017050 A CLASS 0001040566 KOPP FUNDS INC S000000737 Kopp Emerging Growth Fund C000002129 Class A 0000100334 AMERICAN CENTURY MUTUAL FUNDS, INC. S000006193 NEW OPPORTUNITIES II C000017052 C CLASS 0001040566 KOPP FUNDS INC S000000737 Kopp Emerging Growth Fund C000002130 Class C