science assignment - 1. Sickle cell anemia is a disease...

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1. Sickle cell anemia is a disease that affects red blood cells. Affected blood cells are abnormally shaped, usually elongated or shaped like a sickle, hence the name. This is a chronic disease, usually shortening the life expectancy of the diseased to approximately 45 years of age. Sickle cell anemia is seen mostly in people of African heritage, but can affect people of other races. The reason cells form as sickles is that, sometimes, hemoglobin can go through a chemical change, therefore straightening out the cells to release oxygen. The sickle cell disease is a recessive gene, and a person must inherit it from both parents. Some symptoms include pain and inflammation of the joints, fatigue, and anemia. The gene is autosomal. 2. Cystic Fibrosis is an autosomal recessive disease that affects the mucus glands in the body, creating a thick and sticky substance that can affect many organs of the body, including the lungs. CF is caused by a mutation of the CFTR gene, the product of which is important in creating mucus. The life expectancy for most CF
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This note was uploaded on 04/18/2008 for the course BIO 101 taught by Professor Flaten during the Spring '08 term at Horry-Georgetown Technical College.

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science assignment - 1. Sickle cell anemia is a disease...

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