Organic Evolution(Paperback)

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.

Unit-I—Concept, Evidences and Theories of Evolution: Concept of Evolution • Evidences of 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 Equillibrium • Presistence 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 • Glossary • Index.

Dr. (Mrs.) Veer Bala Rastogi earned her master's degree in Zoology with distinction standing first in order of merit. She did her Ph.D. from Meerut University under the guidance of eminent zoologist, (Late) Dr. M.L. Bhatia, Professor in Zoology (Retd.), University of Delhi as External Supervisor, and a member of Fellow of Academy of Zoology.

Dr. Rastogi was a member of academic staff of Zoology, Meerut College, Meerut during 1961-1967, teaching undergraduate and postgraduate students. She retired as Associate Professor from the Gargi College, University of Delhi. Dr. Rastogi is a member of Fellow of Academy of Zoology. She was also a member of Textbook Evaluation Committee, NCERT, New Delhi. She has vast and variegated experience of teaching for more than 45 years of various disciplines of Biological Sciences, viz., Cell Biology, Genetics, Molecular Biology, Environmental Biology, Developmental Biology, Invertebrates and Vertebrates. She has been writing books for over five decades. She has authored many books in biology for ISC, CBSE and several state boards. Her books on Cytology, Genetics, Molecular Biology, Biostatistics, Evolutionary Biology, Developmental Biology, Animal Ecology, Environmental Biology (Ecology), etc. are very popular at university level all over the country. She brings a new functional approach to the study of evolution. This book will prove to be an excellent textbook on evolution at university level both in India and abroad. Dr. Veer Bala Rastogi was conferred 'Distinguished Author Award' 2012 by the Federation of Educational Publishers in India, Delhi.