Heterogenetic antigen An antigen which is possessed by a variety of different phylogenetically unrelated species; e.g., the various organ-or tissue-specific antigens, the alpha-and beta-crystalline protein of the lens of the eye, and forssman antigen. Synonym: heterophil antigen...
This tutorial elaborates on how the nervous system works, particularly at the tissue level of the brain. There are three..
Physiology is the study of how living organisms function. Thus, human physiology deals specifically with the physiologic..
Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..
Meiosis is a form of cell division that creates gametes. It is comprised of two divisions that in the end, the resulting..
Plants need to regulate water in order to stay upright and structurally stable. Find out the different evolutionary adap..
Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..
