Biomolecules are compounds that center around the element, carbon. Carbon, because of its valence structure, is actually quite versatile and probably responsible for the great variation of life on this planet. In today’s post we are going to look at … Continue reading
My last post dealt with the ABO blood groups. There is another blood type group that we should discuss because of significant medical importance. This is the Rh system. There are a number of Rh antigens, but for this discussion … Continue reading
Human red blood cells carry markers on their cell surface. These markers are antigens. We call these markers antigens because they will elicit an immune response and produce antibodies. A “B” red blood cell (a red blood cell carrying the … Continue reading
In the summer, the leaves of trees are a dark green color. But as the summer nears its end, and the nights grow longer and become cooler, these dark green leaves begin to turn to yellows, browns and brilliant reds. … Continue reading