Aplasia (Science: embryology) a lack of development of an organ or tissue or of the cellular products from an organ or tissue. Compare: hypoplasia. Origin: gr. Plassein = to form failure of some tissue or organ to develop.A result where an organ fails to develop completely or not at all...
The hominid family diversified from the apes around 6 to 8 million years ago. Since then, the evolutionary path has prov..
This tutorial presents Gregor Mendel's law of dominance. Learn more about this form of inheritance and how it can be pre..
This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..
This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..
The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..
This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..
