00282nam a2200109Ia 450000500170000000800410001708200140005810000200007224500280009226000440012030000080016420260224040959.0260224s9999||||xx |||||||||||||| ||und||  a575.1 GAR  aGardner, E.J.   0aPrinciples of genetics   aNew York: John Wiley & Sons Inc. c1984  a580