Answers. Best Answer: take the two laces, cross them, put one lace under the cross, pull. take laces again make laces into loop (make an O shape) cross loops put 1 loop under cross, pull, being careful to pull on sides connected to 1st knot, so as not to undo loops. you're done. Source(s):
In the United Sates, sickle cell anemia affects tens of thousands of blacks, and variations of it are seen in whites of Mediterranean, Middle-Eastern and East Indian descent. Hemoglobin is the oxygen-carrying protein of red blood cells. In sickle cell anemia, abnormal blood cells turn rigid, assume a sickle shape and block vessels. The painful episodes associated with the disease are fewer among patients who have a naturally higher level of fetal hemoglobin, which normally diminishes as people age.
Hemolytic anemia is a disorder in which the red blood cells are destroyed faster than the bone marrow can produce them.The term for destruction of red blood cells is hemolysis. There are two types of hemolytic anemia, intrinsic and extrinsic:he destruction of the red blood cells is due to a defect within the red blood cells themselves. Intrinsic hemolytic anemias are often inherited, such as sickle cell anemia and thalassemia. These conditions produce red blood cells that do not live as long as normal red blood cells.