Bioinformatics involves close relation between biology and computers that influence each other and synergistically merging more than once. Bioinformatics techniques have been developed to identify and analyze various components of cells such as gene and protein function, interactions and metabolic and regulatory pathways. It is demanding transformation of basic ethos of biological sciences. This book is aimed to provide information on bioinformatics at various levels. The chapters included in this book cover introductory to advanced aspects, including applications of various documented research work and specific case studies related to bioinformatics. This book will be of immense value to readers of different backgrounds such as engineers, scientists, consultants and policy makers for industry, government, academics and social and private organisations.