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Sickle Cell "Sickle cell anemia is a genetic disease that affects hemoglobin, the oxygen transport molecule in the blood. The disease gets its name from the shape of the red blood cells under low oxygen conditions. Some red blood cells become sickle-shaped and these elongated cells get stuck in small blood vessels so that parts of the body don't get the oxygen they need. Sickle cell anemia is caused by a single letter change in the DNA. This in turn alters one of the amino acids in the hemoglobin protein. Valine sits in a position where glutamic acid should be. The valine makes the hemoglobin molecules stick together when oxygen tension is low, forming long fibers that distort the shape of the red blood cells, and this brings on an attack." Essential Cell Biology, Second Edition by Alberts, Bray, Hopkin, Johnson, Lewis, Raff, Roberts, Walter copyright 2004 by Garland Science Publishing Tags: Sickle, acid, amino, anemia, biochemistry, biology, blood, cell, disease, glutamic, heme, hemoglobin, mutation, oxygen, protein, red, science, substitution, valine 1 Downloads - Last from: (Your Blog here!) |
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Dame un nuevo corazón - Yo me entregaré - Mi entrega Video subtitulado de la cancion Yo me entregaré deel grupo Heme Aqui de Chile. Yo me entregare en tus manos Señor... Ingresa y registrate en estos sitios para obtener muchos aportes musicales.......... www.nuevosamigoscristianos.org www.cuartetos.org www.foroadventista.org www.foroadventista.com Chatea con amigos adventista.... www.chatadventista.com Visita mas de 40 videos cristianos http://www.youtube.com/profile_videos?user=Enochmartin Escucha Radio adventista www.foroadventista.org Tags: advent, adventista, aqui, biblia, church, cristiano, espirituales, heme, jesus, problemas 1 Downloads - Last from: (Your Blog here!) |
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