This book is intended to provide a comprehensive understanding of the fundamental concepts and practical applications of Cytology and Genetics. It encompasses all aspects of the subject, including information on the microscope, cell division, Mendelian principles of heredity, linkage and detection, gene mapping through recombination, multiple alleles, and gene interaction and probability. The practical information outlined in this guide will be of great benefit to students and educators in the fields of Biological and Agricultural Sciences.