Chromosome 13 Chromosomes are organized structures of DNA and protein found in a cell. There are normally 46 chromosomes in a human cell- 23 pairs. You should get 23 from your mother’s egg & another 23 from your father’s sperm. Sometimes these chromosomes can encounter a problem. The two main problems being deletion of a chromosome or an extra chromosome. Chromosome 13 is a chromosome that everyone has a pair of. It normally takes up about 3.5-4% of the total DNA in cells. There are
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NSS MATHEMATICS IN ACTION HONG KONG DIPLOMA OF SECONDARY EDUCATION EXAMINATION MOCK PAPER MATHEMATICS Compulsory Part Paper 2 Time allowed: 1 hour 15 minutes 1. Read carefully the instructions on the Answer Sheet and insert the information required in the spaces provided. 2. There are 45 questions in this book. All questions carry equal marks. 3. Answer ALL Questions. You are advised to use an HB pencil to mark all the answers on the Answer Sheet. Wrong marks must be completely
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constantly being impacted positively and negatively‚ forcing changes to occur. One major affect was the Columbian Exchange on the Americas and Europe. The Columbian Exchange was the transfer of peoples‚ animals‚ plants and diseases between the New and the Old Worlds. This resulted from the European invasions of the late 15th and early 16th centuries‚ opening the door between the two worlds. Even though they will be affected differently‚ many of their actions will be approached in the same way. The
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Huntington’s Disease Haley Hamilton January 4th‚ 2017 Honors Biology 3&4 The World in the eyes of everyday people do not see what awful things that are taking place in those around them. Huntington’s disease is a fatal illness in which those who develop this have no chance of survival. The disease deteriorates one’s ability to function properly and their way of living. Not only does the disease harm the sufferer but it also affects the people around them as well‚ too. For‚ these people are
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Topic #3 Genetic Mutations May Explain a Brain Cancer’s Tenacity Tina Hesman Saey ScienceNews.Org Angel Briana Gray 1/7/13 Glioblastoma are tumors that arise from supportive tissue of the brain. These tumors are usually highly cancerous because the cells reproduce quickly and they are supported by a large network of blood vessels. Glioblastomas are usually highly cancerous. Dead cells may also be seen‚ especially toward the center of the tumor. Because these tumors come from normal brain
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Parkinson’s disease was first founded by an English doctor‚ James Parkinson‚ in 1817. Parkinson’s disease is a disorder of the central nervous system that results from the lack or loss of cells in various parts of the brain‚ the main region is called the substantia nigra. The substantia nigra cells produce dopamine‚ a chemical messenger responsible for sending signals within the brain that allow for coordination of movement. The lack of dopamine causes neurons to fire irregularly and out of control
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Chromosomal Disorders You will be assigned a random chromosomal disorder. You will research the disorder and answer the questions below. You should include a sketch or picture of the chromosome affected (where the gene is located) or the show the karyotype of the disorder and how it compares to a “normal” karyotype. 1. When was the syndrome first discovered and by who? J. C. P. Williams first discovered it at the year 1961 2. The human chromosomes are numbered. If applicable‚ identify
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Prion diseases‚ also known as transmissible spongiform encephalopathies (TSEs)‚ are neurodegenerative conditions that not only effect humans‚ but animals as well. Neurodegenerative have to do with damages that occur in neurons‚ which could even lead to neuron death. Neurons are what make up the nervous system; This includes the brain and spinal cord. Knowing this‚ the disease is very affective and could cause damage to the body as far as death. Prions are found in everyone’s bodies. There is a gene
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What is Alzheimer’s disease? Alzheimer’s disease is the most common and important cause of senile dementia. Dementia is a progressive and irreversible decline of the function of the brain‚ causing memory loss and effects on language and social skills. What causes Alzheimer’s disease and who is at risk? Alzheimer’s disease is a condition of middle and old age‚ being exceptionally uncommon in younger people. Although much is known about which cells in the brain degenerate and die during Alzheimer’s
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Heart Disease • What is Heart Disease? Heart disease is any disorder which affects the heart. Almost half of heart diseases are from coronary heart disease. Coronary heart disease is responsible for 82‚000 deaths in the UK each year – an average of 224 people a day. o Coronary Heart Disease Coronary heart disease affects the coronary arteries‚ which supply the heart muscle itself with the glucose and oxygen that it requires for respiration. • Atheroma Atheroma is a fatty deposit that forms
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