Essays Tagged: "Sickle-cell disease"

its about point mutations, actually just a short summary of it, it was used on one of my power point presentations

ein will be different, but the effect can be quite dramatic. For example, the inherited sickle cell disease is the result of a mutation that results in the substitution of the amino acid valine for gl ...

(1 pages) 91 1 5.0 May/2002

Subjects: Science Essays > Biotechnology

The positive and negative effects of DNA profiling

y can and has been used to determine the capacity of a person to contract certain diseases, such as sickle-cell anemia, which could cause many employers to hesitate in the hiring and training of such ... g and training of such people. In the early 1970's, the United States began a carrier screening for sickle-cell anemia, which affects 1 in 400 African-Americans. Many of those identified as carriers m ...

(10 pages) 380 0 3.6 Apr/1995

Subjects: Law & Government Essays > Law

Discovering Sickle Cell Anemia

n and statistics, Great job!1The topic that I am learning about is Sickle Cell Anemia, a hereditary disease which affects red blood cells. Throughout this research paper, I will discuss what exactly i ... s, how it is caused, any known treatments or cures, and many other facts that are important in this disease.Sickle Cell Anemia is a health problem throughout the world. More than 250,000 babies are bo ...

(5 pages) 96 0 3.0 Apr/1997

Subjects: Science Essays > Biology

Sickle Cell Anemia

about 1 in 400African©Americanchildren carry Sickle Cell Anemia.If a person is hybrid for the disease, they are said to have the sickle cell'trait'.Their cells can be made to sickle in a test tu ...

(2 pages) 73 0 4.7 Oct/1996

Subjects: Humanities Essays > Health & Medicine > Diseases

Sickle Cell Anemia

mptoms of anemia are pallor, shortness of breath, low vitality, dizziness, and digestive disorders. Sickle-cell anemia is the result of a hereditary defect in the synthesis of hemoglobin.Past treatmen ... monal deficiency.Formation of abnormal hemoglobin is respopnsible for the hereditary defects called sickle-cell anemia and thalassemia major. Both are severe diseases that can be fatal in childhood.Si ...

(2 pages) 71 0 4.6 Jan/1996

Subjects: Science Essays > Biology

Concise essay on sickle cell anemia. Easy to understand and eliminates all the technical verbage to scientific writing.

ene for sickle cell anemia. A parent can be a carrier of just one copy of the gene and not have the disease. However, if a child inherits a sickle cell trait gene from each parent, the child has two c ...

(2 pages) 64 0 4.0 Jan/2003

Subjects: Science Essays > Genetics & Genome Projects

Short overview of the genetic diseases Huntingdon's Chorea and Sickle Cell Anaemia

Oxygen where it is needed is compromised.Under normal blood conditions, there are no bad symptoms. Sickle-cell disease features episodes called 'sickling crises'. These may be brought on by exposure ...

(4 pages) 33 0 4.5 Oct/2004

Subjects: Science Essays > Biology

Human Circulatory System:Sickel Cell

the major problems associated with the circulatory system is sickle cell anemia. Usually a heredity disease, sickle cell anemia causes abnormalities in the shape of red blood cells. If looked at under ... rescent and are wilted. This is where they are given the name sickle cell. Cells infected with this disease do not have the regular round shape of normal red blood cells. This causes them to clog smal ...

(2 pages) 36 0 3.5 Dec/2004

Subjects: Science Essays > Biochemistry


t)AsbestosisPhysiological (caused by a body system not working correctly)DiabetesGenetic (inherited)Sickle-cell anaemia, cystic fibrosis, haemophilia Sickle-cell anaemiaSickle-cell anaemia is caused b ... is results in the production of abnormal haemoglobin. Individuals homozygous for this allele suffer sickle-cell anaemia.Red cells that contain the abnormal haemoglobin change shape and become sickled ...

(15 pages) 79 0 3.7 May/2005

Subjects: Science Essays


ior of hemoglobin from a normal person and from a person who has the sickle cell trait. Sickle cell disease is an inherited autosomal recessive gene. If the person has the inherited gene for sickle ce ... s involve the substitution of one amino acid for another; however, some mutations may cause serious diseases such as sickle cell disease. Hemoglobin S is the most common and serious abnormal hemoglobi ...

(3 pages) 23 0 3.0 May/2005

Subjects: Science Essays

Genetic Disorders

enzyme molecules. At the molecular level, the normal allele and the Tay-Sachs allele are codominant.Sickle-cell disease is caused by the substitution of a single amino acid in the hemoglobin protein o ... n protein of red blood cells. When the oxygen content of an affected individual's blood is low, the sickle-cell hemoglobin deforms the red cells to a sickle shape. Sickling of the cells, in turn, can ...

(3 pages) 43 2 4.5 Jun/2006

Subjects: Science Essays > Biology

Sickel Cell Anemia

ives one set of genes from the mother and a corresponding set of genes from the father. Sickle cell disease is a condition that is determined by a single pair of genes. The genes are those which contr ... ditions. People who inherit two genes for sickle hemoglobin (one from each parent) have sickle cell disease. It is believed that individuals with African and Mediterranean ancestry have unusually high ...

(5 pages) 36 0 3.7 Jun/2006

Subjects: Science Essays > Biology


n fraction of haemoglobinn, commonly called the abnormal haemoglobins. E.g. Haemoglobin S, found in sickle-cell anaemia- Where the amino acid sequence is normal but polypeptide chain production is imp ... ever may become permanent and the red cell 'irreversibly sickled.' The greater the concentration of sickle-cell haemoglobin in the individual cell, the more easily tactoids are formed, but this proces ...

(2 pages) 1659 0 4.3 Sep/2006

Subjects: Humanities Essays > Health & Medicine > Diseases

Sickle Cell Anemia

from Italy, Greece, India, and the Middle East.Sickle Cell Anemia is the specific name of a form of sickle-cell disease in which there are two of the same alleles (position on DNA) that mutates and ca ... sickle beta-plus-thalassemia, sickle beta-zero-thalassemia, and hemoglobin ss. These other forms of sickle-cell disease are compound heterozygous states in which the person has only one copy of the mu ...

(3 pages) 17 0 0.0 Dec/2006

Subjects: Humanities Essays > Health & Medicine > Diseases

The Effects of the Sickle Cell Trait

IntroductionSickle cell disease (SCD) is an inherited blood disorder that affects 80,000 individuals-primarily African Ameri ... vents and progressive organ damage. While individuals with SCD are at risk for early mortality, the disease course is variable. The one cure-bone marrow transplantation-is available to a limited numbe ... nd powerlessness, yet little is known about the impact of teaching sickle cell patients about their disease. Whitten and Fischhoff (1974) found that most mothers of children with sickle cell disease c ...

(8 pages) 38 0 5.0 Mar/2007

Subjects: Science Essays > Genetics & Genome Projects

Sickle Cell Anemia

Sickle-Cell Anemia Sickle-cell anemia is a disease that affects the shape of red blood cells. Blood ... ckle-cell anemia is a disease that affects the shape of red blood cells. Blood cells in people with sickle-cell disease have a bent, or sickle shape. Because of this slight mutation to the cells, they ...

(3 pages) 32 0 3.0 Apr/2001

Subjects: Science Essays > Biology

Sickle Cell Anaemia And Gene Therapy

bin gene. Since the identification of the b-globin gene, haemoglobin disorders were among the first diseases to be considered for gene therapy. One approach is by insertion of a functional b-globin or ... possible (Kalberer et al., 2000). Successful vectors must be tested in mouse models of sickle cell disease (Ryan, et al., 1997) to determine how much endogenous marrow ablation and how many corrected ...

(4 pages) 15 0 4.0 Jul/2001

Subjects: Science Essays > Biology

Sickle Cell

Sickle cell anemia is an inherited disease that begins at birth and continues for life. Sickle cell anemia causes the body to manufactu ... r when S hemoglobin is involved, sickle cell anemia.The terms "sickle cell anemia" and "sickle cell disease" are both used to refer to the same condition. There are actually three variations of sickle ... erits hemoglobin S plus another type of defective hemoglobin. One of the other types of sickle cell disease is called sickle cell Thalassemia disease, or S Thal. The other kind is called sickle cell h ...

(2 pages) 9 0 0.0 Sep/2001

Subjects: Science Essays > Biology

Essay II

damage. The first article and Mayfield say that having the crises is the most disabling element of sickle-cell anemia. What Practical Tips did not mention is that the body recognizes the abnormal blo ...

(3 pages) 8 0 0.0 Oct/2001

Subjects: Science Essays > Biology


become stuck inside of the red blood cells and cause damage to the tissues.It is impossible to get sickle-cell if it does not run in the family. If only one parent has this and it is passed on to the ... arent has this and it is passed on to the child, then they only have one gene that is producing the sickle-cell hemoglobin, and they have what is called the sickle-cell trait. Parents who both have si ...

(2 pages) 8 0 0.0 Oct/2001

Subjects: Humanities Essays > Health & Medicine > Diseases