Surveys of Biological Progress, Volume I is an 11-chapter text that covers the advances in some aspects of biology, including growth and development, gene, virus, hormones, and ecological studies. This book starts with an introduction to the status of biological education in school curriculum and to the nature of gene actions. The subsequent chapter deals with the salient features of tracer methods and their application in biological and biochemical studies. Considerable chapters are devoted to various topics of biological interest, including nutrition, reproduction, growth and development, vi