Developmental biology

Introduction. A stem cell is an unspecialized cell that has the unique ability to both self-renew, producing more stem cells, and differentiate into specialized cell types such as muscle, nerve, …

Development of Stem Cells, Introduction, Definition, Origin, Types, Mechanism and Role. Read More

Definition. Biological development is the process by which living organisms grow and develop from a single cell into an organism. It includes all the physiological changes that occur during life. …

Biological Development Basics, Definition, Stages and Mechanisms of Animal development. Read More

Introduction. Spermiogenesis is the final stage of spermatogenesis (the process of sperm cell formation) in which immature spermatids transform into mature, functional spermatozoa (sperm cells) without undergoing further cell division. …

Spermiogenesis, Introduction, Stages, Structure and Key Points. Read More

Pregnancy is a biological process in which a fertilized egg develops into a baby. During development, several changes occur. Pregnancy occurs in the female body. A fertilized egg (ovum) implants …

Stages of Pregnancy Months and Size Read More

Fetal Development Trimesters consist of three trimesters. A trimester is a period of three equal periods; each one consists of three months. The first trimester consists of 0-13 weeks, the …

Fetal Development Trimester and Size Read More