00255nam a22000977a 4500003000400000008004100004082001600045100002300061245002800084260004500112OSt240209b        |||||||| |||| 00| 0 eng d  a575.1bG18P  aGardner, Eldon J.   aPrinciples of genetics   aNew YorkJJohn Wiley and Sons Ltd.c1981