00258nam a2200109 a 450000500170000002000150001708200160003210000160004824500220006426000440008630000180013020251203110047.0  a8125905634  a574.88bKUM  aKumar, H.D.  aMolecular biology  aNew DelhibVikas Publishing Housec1998  a289p.c23 cm.