This book is written to help students to better understanding of genetics and attempt to make genetics is not as a 'frightening' subject by giving examples of many different types of questions along with their solutions or answers. This book also try to lead students step by step in sloving genetics questions. the most important thing for students to solve the genetic questions is to fully undestand the questions. As it is imposibble to answer the question if they do not understand it clearly. For the purpose, 'translating' a sentence or phrase or words to symbols is very essential.