Preface PREFACE The multicoloured edition of the textbook of Cell Biology, Genetics, Molecular Bi ology, Evolution and Ecology is the outcome of sincere and combined efforts of the authors and editors (namely Shishir Bhatnagar, Shubha Pradhan, Malini Kothiyal) and young but talented persons of DTP of S.Chand & Company Ltd. Their main motive remained to provide relevant coloured photographs explaining various intricate biological topics. Multicoloured figures and photographs of this edition would help our target read ers to understand and fully appreciate the very gist of the subject matter. Authors and editors have remained quite choosy and vigilant regarding relevance and authenticity of each and every illustration/picture finding its place in this textbook.