Genetic Disorders: Haemophilia
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Later it was discovered that it was the result of an extra copy of chromosome 21. The nondisjunction that results in an extra copy of chromosome 21 occurs during anaphase I in meiosis I. The genetic mutation is trisomy 21 (3 copies of chromosome 21). The characteristic phenotypic occurrences that are distinct to the disorder: poor muscle tone, stout neck, flat face, small head, mouth, and ears, eyes slanting upwardly, Brushfield spots, and stout fingers and
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Women have two X-chromosomes so that is why they will not have the disease. They have one defected gene and one normal. Their normal
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Although half of your chromosomes come from your mother and half from your father, your genetic pattern can be different from the patterns of either of your parents. Your genes determine who you are, for example they determine your
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“Every human has an MAOA gene. ... The MAOA gene is located on the X chromosome, which means that while women have two copies, men only have one.... There are a few variants of the gene, one of which -- MAOA-3R, present in about 30 percent of men -- has been shown over and over again, in
Stephen Pemberton's The Bleeding Disease
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Hemophilia - the hereditary lack of a blood clotting factor typically caused by a recessive X-linked genetic mutation - has been at the forefront of public attention for centuries due in part to its seemingly mysterious presentation almost exclusively in males and its prevalence among European and Russian royal dynasties due to inbreeding - but has only been the subject of serious medical study and treatment for the past two centuries. “Before the modern era, there was some recognition of the experience of familial bleeding… but there was still no formal knowledge of hemophilia within medical circles, still no pathology,” writes historian Stephen Pemberton in The Bleeding Disease (21). The first writing referencing hemophilia is a Jewish
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The child’s percentage of inheriting that gene has drastically increased as compared to a child whose father is not related to the
Cystic Fibrosis And Sickle Cell Anemia Essay
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From that, we know the gene is on an autosome, which is a non-sex chromosome. The word recessive tells us that the individual has to be a homozygous recessive, with two copies of the gene, to express the trait or disorder. One is inherited from the mother, and one from the father. Carriers, individuals who only have one recessive gene, are not affected by the disease but are able to pass it down to their children. Most people are not aware they carry a recessive gene for a disease until they have a child with the disease.
Genetic Disorders: Cystic Fibrosis
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Cystic Fibrosis is a serious genetic disorder that affects the insides of a human body. Cystic Fibrosis is a genetic condition in which the lungs and the insides of the human body become clogged with thick sticky mucus. The mucus builds up inside of the body and affects the insides like the lungs, liver , pancreas, your sinuses, and more. Cystic Fibrosis also affects the digestive system which makes food harder and a longer time to digest. Some symptoms for cystic fibrosis are salty-tasting skin(sweat), poor growth, and poor weight gain despite normal food intake.
Queen Victoria's Influence On Russia
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The impact of Queen Victoria’s genes on Europe The First World War changed the political map of the modern world, by the end of the war in 1918 the emperors of Russia, Germany and Austria had all lost their thrones. Queen Victoria had nine children, of which two daughters Alice and Beatrice, were carriers of haemophilia, and one son Leopold, who was a sufferer. In the nineteenth century members of the royal family were expected to marry someone of the same class and rank; resulting in close relations and the spread of haemophilia between the European royal families.
Genetic Disorders: Sickle Cell Anemia
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Sickle cell anemia is a genetic disorder it is also known as sickle cell disease. A genetic disorder is something that is passed down from parent to child. This is a disease of the hemoglobin. Hemoglobin is a red protein responsible for transporting oxygen in the blood of vertebrates. Sickle cell anemia causes your red blood cells to stiffen, although your red blood cell are supposed to be flexible.
Michelangelo Di Lodovico Buonarroti
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The Renaissance was a time of interest in music, art, literature, learning, and architecture. It was a time where the spark of learning was renewed. The Renaissance time period went from 1300 to 1600. The Renaissance was full of creativity in science, math, art, and other subjects. The Renaissance was when the people were coming out of the Dark Ages.
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Klinefelter syndrome, also known as ‘47,XXY’ and ‘XXY’ is found in males, this is due to the fact that the host male gets another X chromosome. The image on the right you can see the extra chromosome with the pair of sex chromosomes. Usually there are only two chromosomes that determine the sex, one from opposite sexes but when it comes to Klinefelters Syndrome there is an extra X chromosome. Because this due to the additional chromosome it can described as a chromosome disorder.
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This means since my father’s earlobes are attached, differing from my mom’s free hanging ones, one of them has a homozygous recessive genotype. Due to the fact my brother and I both have free hanging earlobes like my mother, the probability is higher that free hanging earlobes are a dominant trait. For example, if my mom’s trait was heterozygous, meaning her phenotype would still be that of a dominant one, the probability my parents have a child with free earlobes is 50% along with the chance of having a child with attached at also 50 %. If my mom carried the homozygous dominant alleles instead of the heterozygous, the probability my parent’s offspring would have free hanging earlobes would be
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Haemostasis is a physiological process of blood clotting and dissolution of the clot, followed by the repair of injured tissue. It results from interplay of vascular endothelium, platelets, coagulation factors, anti-coagulation mechanisms and fibrinolytic system. The fluidity of blood in the absence of injury is maintained by the balance between pro-coagulant pathway, and the mechanisms that inhibit the pro-coagulant pathway. Imbalance between the two mechanisms, for example during clinical illnesses or preoperative period, predisposes a patient to either bleeding or thrombosis. To stop bleeding after injury, a complex process is initiated within seconds.
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If no such gene exists, then no statistically significant correlations between sexual orientation and X chromosome markers will be observed. The X chromosome markers used for linkage analysis were simple sequence repeats, variable number of tandem repeats and RFLP, all detected by PCR. Evaluation of this data obtained from 40 pairs of homosexual brothers showed a connection between Male Homosexuality and distal region of Xq28 and there was no significant evidence for a relation between sexual orientation and loci lying outside of
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