The book is prepared to serve as a text book for senior undergraduate and post graduate students. The book is written in simple language and even complex terms have been reduced for easy understanding. Biostatistic and Biometrical Genetics provides up-to-date information about almost all basic principles, basic techniques, biometrical Genetic methods and analysis available in the literature. Due importance has been given to both the theoretical and practical aspects of the subject. The book will serve as an in-depth guide to the students of genetics and plant breeding interested in identifying most biomaterial techniques and knowing their role in crop improvement programmes. The book will also be helpful for the statisticians who are working in collaboration with the geneticists and plant breeders.