The procedure of regeneration of damaged DNA molecule by the identification of its genome by the cell is referred to as DNA repair. This book is a collection of several chapters divided into various distinct categories. Each chapter has been researched by leading experts in their respective fields. The range of the book varies from the DNA damage response and DNA repair methods to transformational characteristics of DNA repair, providing a picture of present perceptions of the DNA repair procedure and the function of microRNA in DNA damage response. This book consists of several case studies and also examines the evolution of DNA repair in plants and meiosis as an evolutionary adaptation for DNA Repair.