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This, my friend, is one of the great mysteries of the universe.
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∙ 13y ago
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What happens when a person has sickle cell anemia?
sickle cell anemia is releated with RBC . RBC will change in size ( microcytic ) and shap will change (sickling shap) that are cause in blokers vascular > then cause hypoxia in some organes that is cause tachycardia and shortness breath some time palor
How is the DNA in the Sickle Cell allele different from the normal allele?
Normally, the 6th position of the beta chain of hemoglobin is a Glutamic acid, encoded on the DNA as GAG. The sickle cell mutation has the sequence GTG, resulting in a Valine in the 6th position instead.
Do only black people get sickle cell?
Technically anyone could get Sickle Cell. If one of your parents had a sickle cell anemia trait they could have passed it down to their child. If both of them had it then they definitly passed it down to their child. If a person is trying to find out if they have Sickle Cell Anemia then they should see someone who can conduct a pedigree. Or a gene tracer. This was taught to me in Science class a couple years ago so the information could not be completely accurate.
Why has sickle cell anemia been maintained in the human population?
Sickle-Cell AnaemiaSickle cell anemia is a disease that is controlled by alleles S and s .three possible combinations are SS , Ss ans ss . The most important reason why this allele is present in whole world including America is heterozygous superiority which keeps this gene in population Several major Universities whose main function is Technology, along with the Medical Schools associated with teaching in the Children's Hospitals have begun joining forces using nanotechnology to alter the genetics of the sickle cell trait. Among them is a collaborative effort between GA Institute of Technology, Emory University Medical School, and Children's Health Care Systems of Atlanta. Once this is accomplished, plans are already in the works to move on to another deadly disease initiated with inherited genes: Cystic Fibrosis. This is an excellent collaborative use of each genre's best abilities: cooperation vs competition.I earlier times this may have been negatively associated with eugenics, however that connotation is now being transformed with the positive aspects of actually changing genetics at the microcellular level to rid populations of certain killer traits, rather than attempts at 'perfecting the human race,' as in the despicable times of Hitler. This is not a genocidal experiment, but one aimed at saving lives of painful and deathly diseases, remembering sickle cell trait is mostly among Blacks.To get a clearer picture of why the allele is still present, just remember what the Hardy-Weinberg principle predicts:both allele and genotype frequencies in a population remain constant; that is, they are in equilibrium from generation to generation unless specific disturbing influences are introduced. Those disturbing influences include non random mating, mutations, selection, limited population size, "overlapping generations," random genetic drift, gene flow and meiotic drive.Since the homozygous recessive (when the Anaemia is actually expressed) and heterozygous condition do not affect mating probabilities, the allele will naturally remain within the population.
Is the change in the size of the chromosomes the cause of sickle cell disease?
the sickle cell disease can be caused by many things including the change in size of chromosomes. the change of size in chromosomes can change and become either bigger or smaller. if the size doesnt change, then it doesnt get bigger or smaller which means the size stays relatively the same in general. it also makes you get a priapism
What are types of anemia that reduce hemoglobin level?
The type of anemia that can reduce the hemaglobin level are the microcytic-hypochromic anemia and the normocytic-normochromic anemia. Microcytic-hypochromic anemia produces small, abnormally small erythrocytes and reduced hemoglobin concentrations. However, hypochromia can occur even in cells of normal size. This type of anemia results from a variety of conditions that are caused by disorders of iron metabolism, porphyrin and heme synthesis, or globin synthesis. Normocytic-normochromic anemia produces a destruction or depletion of normal or mature erythrocytes. Although the erythrocytes are relatively normal in size and in hemoglobin content, they are insufficient in number. This type does not share any common cause, pathologic mechanism, or morphologic characteristics and is less common than the others. The five distinct anemic conditions exemplify the diversity of this classification which are the aplastic anemia, posthemorrhafic anemia, haemolytic anemia, anemia of chronic disease and sickle cell anemia.
What are microcytic?
platelets that are smaller in size than your average platelets... Can be associated with aplastic anemia.
What is the size of a sickle red blood cell?
7-12 µm in diameter in humans
What does the medical abbreviation RDW mean?
Red Cell Distribution WidthRDW = Red cell Distribution Width. A measure in variation of the sizes of the Erythocytes (red blood cells)RDW stands for red cell distribution width. It is a measure of the variability of the size (volume) of red cells. Red cells of uniform size--no matter what that size is--will have a low RDW. A population of cells which vary greatly in size will have a high RDW. Another name for variability in red cell size is anisocytosis. In both thallasemia and iron deficiency anemia, the average cell size (measured as MCV, mean corpuscular volume) is low. But in iron deficiency anemia, unlike thallasemia, the RDW is increased.Red Cell Distribution Width in PercentageRed-Blood Cell Distribution Width
What are microcytic platelets?
platelets that are smaller in size than your average platelets... Can be associated with aplastic anemia.
What does high red cell size distribution mean?
High red cell distribution is detected from a red cell distribution width laboratory test. It is one of the primary causes of anemia.
What is the size of animal cell?
* well it depends on what can of cell i know that it is a animal cell but not every body cell is not the same size. * well it depends on what can of cell i know that it is a animal cell but not every body cell is not the same size.
