Organic Evolution (Evolutionary Biology)

Evolutionary Biology is a fast developing subject to encompass animals and plants, past and present. This book on Organic Evolution is an updated exposition of the subject to include the latest concepts, theories and observations in a simple and lucid language. Text is divided into five parts: Part-I deals with concepts, evidences and theories of evolution. Part-II peeps into the Mechanism of Evolution. Part-Ill provides a systematic approach to the process of Speciation. Part-IV explores the basic patterns of Evolution, and Part-V provides an insight into the origin of life, fossil-records and history of life on Earth. Text is profusely illustrated with diagrams to ensure an easy comprehension of the underlying concepts. The book would be a useful textbook for students of biological sciences. Brief Contents: Unit I-Concept, Evidences and Theories of Evolution: Concept of Evolution Evidences for Evolution Theories of Evolution. Unit II-Mechanisms of Evolution: Variation Gene Mutations Chromosomal Aberrations Variation in Chromosome Number (Heteroploidy) Reproductive Isolating Barriers. Unit III-Speciation: Population Genetics, Gene Frequencies and Hardy-Weinberg Equilibrium Persistence of Variability within Populations: Polymorphism From Population to Species (Speciation) Genetic Drift and Gene Flow Natural Selection in Action Evolution of Genes and Genomes. Unit IV-Basic Patterns of Evolution: Patterns of Evolution Microevolution and Macroevolution Adaptations. Unit V-Fossils and History of Life on Earth: Origin of Life on Earth History of Life on Earth Fossils and Fossil Records Origin and Evolution of Horse Origin and Evolution of Man.