Will he be fat or skinny? Genetics is a fundamental building block to the development of the fetus in the womb. “The entire genetic code of a human is determined by the unique combination of a mother’s single ovum (egg) and a father’s single sperm” (Mossler, 2011, 2.1 Genetic Foundations). Genes play an important role in determining physical trait. Genes play a significant role in determines who a person is. As a couple begins the process of reproduction, the one cell that is formed after conception…
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Infectious Diseases Asthma is a disease that affects the lungs, which causes wheezing, breathlessness, chest tightness and sometimes nighttime or early morning coughing. Once you have asthma, you have it at all time. Asthma attacks occur when something bothers your lungs. The causes are unknown for asthma and haven’t found a cure for it. Asthma can be diagnosed in many ways. The only ways to find the reason of the asthma being diagnosed is going to a doctor and have a checkup for lung functions…
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Sickle cell anemia is a genetic disorder of the red blood cells (RBC) which is characterized by the blood cells being formed in the shape of a crescent, or half-moon. Due to its being a genetic disorder, you can actually be a carrier of this disease and not have any symptoms. Only when offspring is met with another carrier does this trait become a dominant trait but until then it is known as sickle cell trait or (SCT). There is a multitude of health problems associated with sickle cell anemia…
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The four forces of evolution are mutation, gene flow, genetic drift, and natural selection. Mutation is a random change in a gene or chromosome, resulting in deletions, additions, or substitutions in the DNA sequence. Without mutation, there would be no evolution because the only way a sex cell can be passed down is through mutation. Gene flow is the exchange of genetic material between two populations. Genetic drift is the random change in allele frequency from one generation to the next. Finally…
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that she carries the sickle cell trait and wants Davon screened for it. Davon may have the sickle cell trait. The doctor will perform a blood test to see if the child has normal hemoglobin A and abnormal hemoglobin. The nurse will use a glass tube to extract blood from the child. The plasma proteins and platelets will start to from a clot. The test will find an abnormal hemoglobin S in the red blood cells if the child carries the sickle cell trait. It is common in sickle cell traits to have a little…
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Sickle cell disease which in African language is translated to “state of suffering” is caused in the capillaries and slows blood flow and reduces the supply of oxygen to tissues. This disease causes a lot of pain and comes with various complications and serous dangers. Sickle cells are red blood cells that are deformed shaped like sickles (“S”) that are caused by a genetic mutation in the hemoglobin protein. This is a disease that is not contagious but is hereditary, which means it is passed down…
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same gene locus as other alleles of the gene. Genome: the whole of the genetic information of an organism. 4.1.3 Define gene mutation. Gene mutation: a change to the base sequence of a gene. 4.1.4 Explain the consequence of a base substitution mutation in relation to the processes of transcription and translation, using the example of sickle-cell anemia. Sickle cell anaemia is a genetic disease that affects red blood cells in the body. It is due to a mutation on the Hb gene which codes for a…
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Marcus may have Sickle Cell Anemia. Sickle Cell Anemia is a genetic disorder that occurs when a child inherits two sickle hemoglobin genes, one from each parent. Sickle cell is not contagious, and you must be born with it. Normal red blood cells are round and flexible, while people with the Sickle Cell disease have blood cells that are crescent shaped. The Sickle-shaped red blood cells break apart easily, and do not live as long as normal red blood cells. Damaged red blood cells tend to clump together…
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a number of important reasons Many infections are caused by viruses so antibiotics are not effective Even if the infection is bacterial, the use of antibiotics is unlikely to have much benefit in terms of speeding up the healing process and can cause unpleasant side effects The more antibiotics are used to treat trivial conditions the more likely they are to become ineffective in treating more serious conditions because of antibiotic resistance. For example, antibiotics are no longer routinely…
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5: Mendelian Genetics Content Outline: Mendelian Genetics (5.2) I. Complete Dominance A. The dominant allele has information and it is expressed, even if there is only one copy. Geneticists call this “100% penetrance”. II. Incomplete Dominance A. Information from both alleles is expressed in the cell. Neither phenotype is completely penetrant, therefore the heterozygous phenotype appears “blended”. (Red + White = Pink) III. Codominance A. Both alleles are expressed in the cell. They are both…
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