About the BookThis book deals about introduction to the Bioassay, its applications, methods of Bioassay, expressing Bioassay in terms of MIC and IC50 values, Antimicrobial agents, and Molecular modeling studies. A detailed description of Biological evaluations, Quantitative Structure Activity Relationships (QSAR), Docking methods - GOLD and Argus lab 4.0.1 is presented. This book also deals with QSAR, Docking and Invitro antioxidant activity study of Novel Chromone derivatives by also considering inhibitory activity of Chromones against poly [ADP-ribose] polymerase. Towards the end of the thesis, Biological evaluation and molecular modeling studies of Novel Pyrido-(2,3-d) Pyrimidine derivatives as antibacterial agents.