00300nam a2200121 a 450000500170000002000150001708200150003210000240004724500270007125000120009826000420011030000260015220251203091249.0  a0195051084  a575.1bROT  aRothwell, Norman V.  aUnderstanding Genetics  a4th ed.  aOxfordbOxford University Pressc1988  axvii,703p.c24 cm. HB