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.
Symptoms include lethargy, jaundice, fever, pale mucous membranes, and abnormal pulses. Anemia is a decrease in the mass of red blood cells, the result of lack of production, loss of red blood cells, or destruction of red blood cells. There are two types of anemia: regenerative and non-regenerative.