Von Willebrand Disease: A Genetic Disorder Von Willebrand’s disease is a inherited disorder with prolonged bleeding time due to a clotting factor insufficiency and decreased platelet function. It is the most common hereditary coagulation disorder (Obesity‚ Fitness & Wellness Week 1). This disease The Finnish physician Erik von Willebrand was the first to describe von Willebrand disease. In 1926‚ this doctor observed that several male and female members of a large family from the Aland Islands had
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and human inheritance 1. An AABb individual is mated with another AABb individual. The possible number of genetically different kinds of offspring is _____. a. 3 b. 2 c. 9 d. 4 e. 1 2. The most common phenotype in a natural population is referred to as the _____. a. Mutant phenotype b. Wild type c. Liked gene d. Autosome e. Genotype 3. The most common lethal genetic disease in the United States is _____. a. PKU b. Huntington’s disease c. Sickle-cell disease d. Hemophilia e. Cystic fibrosis 4. An important
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questions and solve problems about monohybrid inheritance. Questions Q1 Some forms of albinism‚ a genetic disorder‚ may be due to a single gene mutation. The allele for albinism is recessive to the allele for no albinism. A woman is heterozygous for albinism. Her male partner is homozygous for the ‘normal’ allele. a Does the woman suffer from the condition? no b What percentage of their children are likely to be carriers? 1:4 c Explain what is meant by the term ‘symptomless carrier’. Carries
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1. 2. 3. All of Allison’s eggs will carry the X chromosome and 50% of Allison’s egg cells will carry the recessive allele (hexa). 4.a. There is a 25% chance that Allison and Tim will have a baby boy who is heterozygous for Tay-Sachs. b. No‚ the baby boy will not have Tay-Sachs he will be a carrier for the disease. The boy would only have the disease if he was homozygous recessive. | X | Y | X | XX | XY | X | XX | XY | 1:2 1:2 | T | t | T | TT | Tt | t | Tt | tt
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Write your name here Surname Other names Edexcel International GCSE Centre Number Candidate Number Biology Unit: 4BI0 Science (Double Award) 4SC0 Paper: 1B Monday 9 January 2012 – Morning Time: 2 hours You must have: Ruler Calculator Paper Reference 4BI0/1B 4SC0/1B Total Marks Instructions Use black ink or ball-point pen. Fill in the boxes at the top of this page with your name‚ centre number and candidate number. Answer all questions. Answer the questions in the spaces provided
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Parkinson’s disease is a progressive chronic disease that affects the nervous system. The disease begins with small changes that might go unnoticed‚ such as a tiny tremor. However over time‚ the disease will progress to the point that the affected person is completely unable to control movement in any normal way. Currently‚ almost one million people in the United States are affected by this disorder (Parkinson’s Disease Foundation). However the cause is yet to be discovered and there is presently
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November 1‚ 2012 The Importance of Genetic Propensity for Disease In this new modern world‚ it is common to believe that there is a cure out there for everything. Treatments for cancer are getting better every year‚ and the methods for delivering insulin to Diabetes patients has become more refined and precise. However‚ these are all focused on cures‚ and very little attention is spent on prevention. The main reason for this is that the exact causes of these diseases are not completely clear. The ways
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Cystic fibrosis is a life – shortening inherited disorder that affects the way in which salt and water move into and out of the body’s cells. It effects mostly the lungs and the digestive system; where thick mucus blocks the small tubes and ducts of the pancreas. (Orenstein) The classic triad of exocrine abnormalities are pancreatic insufficiency‚ chronic recurrent pulmonary infections and an elevated sweat electrolyte concentration. At birth the pancreas shows signs of disease and the lungs appear
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SOC 313 August 6th ‚ 2012 Idiopathic Pulmonary Fibrosis My father was diagnosed with Idiopathic Pulmonary Fibrosis about 5 years ago. Because of this reason alone‚ I wanted to do my research project on this specific condition. Within my research‚ I have found that Idiopathic Pulmonary Fibrosis is a progressive‚ fatal disorder of the lungs that causes them to become thick and stiff. I have learned about all the different causes‚ signs and symptoms and different tests that one must go through
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Pulmonary fibrosis is the formation or development of excess fibrous connective tissue in the lungs. Pulmonary fibrosis is one of a family of related diseases called interstitial lung diseases. All of these diseases can result in lung scarring. (Ebina M 2010) "Fibrosis" is a term used to refer to scarring‚ so pulmonary fibrosis means scarring throughout the lungs. In some people‚ chronic pulmonary inflammation and fibrosis develop without an identifiable cause. Most of these people have a condition
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