This has evolved considerably the concept of biology and computation i.e. computational biology. This book will provide definitely the elementary ideas regarding the Bioinfomaics. Over 298 pages of thisbook, it has been tried to give the basic informationas well as to serve the important information, thisedition will be help full for the students ofbiotechnolgy, bioinformatics as well as in researchareas. This book contains five units having differentcharacters like, What is the Bioinformatics,Biological bases for the Bioinformatics, ProteinsStructure, folding and function, Nucleotide SequenceData: Genome, Biological data types.