Understanding the genetic cause of inbreeding depression is crucial to the conservation of endangered species, and to the understanding of genetic diseases encountered in certain human populations. Inbreeding depression is an overall reduction in the fitness of a population due to mating between close relatives. There are two prevailing hypotheses for the genetic basis for inbreeding depression; the partial dominance theory and the overdominance theory. The partial dominance theory essentially
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Cystic Fibrosis is a disease that for which one in every 25 Americans carry a gene, which means around 12 million Americans are carriers. It is caused by a mutation in the Cystic Fibrosis Transmembrane Conductance Regulator, causing an abnormal amount of mucus to be secreted, settling the lungs and pancreas. The Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) is a protein that allows for chlorine ions to be able to escape mucus-producing cells. It helps thin out the mucus to keep the airways
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hair and blond hair, the dark hair is the dominant trait. Therefore, all their children will inherit dark hair. 2. Genetic counseling will help couples who have decided to have a child see whether there are any risks of giving birth to a child with genetic disorder. If so, the genetic counselor will assist the couple to choose another option like adopting or surrogacy. First, the genetic counselor will ask for any family history of having mental retardation, psychological defects, physical defects etc
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The significance of studying genetics and behaviour of flies or other organisms is that it would be used to understand other complex animals such as humans. “almost 75% of genes responsible for human diseases are observed to have homologs in Drosophila fly” (Pandey, U. B., & Nichols, C. D. ,2011). Moreover, one of the most available and favourable animal model used to study is the fruit Drosophila melanogaster. “Drosophila has been a key experimental subject in genetics since the early 1900s. It was
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Blending Inheritance is a concept that many people believed. The concept of Blending Inheritance is that an offspring gets 50% of its traits from one parent and the other 50% from the other parent. An example is a yellow butterfly and a rare blue butterfly mating to making a green butterfly. The green butterfly will mate with a common yellow butterfly and make the blue butterfly go extinct. This concept was disproven through more valid concepts like Incomplete Dominance, Co-Dominance, Epistasis,
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many cases results of genetic testing are not only reveal cause of symptoms and guide treatment, but also help other family members to reduce risk of diseases. For example, young Conner’s father began to receive tests more frequently after he knew both him and his son had an inherited condition call the Lynch Syndrome, which ‘increases the risk of colon and other cancers’ In this short video clip, Genetic testing: Becky Bausman's story, Becky describes the prenatal genetic testing her received as
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Genetic Engineering Genes can determine human traits and behaviors, as well as influence health and disease. With new technologies regarding genetics coming about, researchers are discovering its many applications for engineering the best traits in humans. Because of this, however, there are a number of controversies surrounding the topic. Is the genetic engineering of human embryos an ethical option for bringing out the best traits possible? Are there any limits of what we can do and what we should
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Human Genetic Manipulation Planner (3.7) AS91607 Name: Vincent Judson-Leitch Outline relevant biological knowledge for selective breeding: Selective breeding is when certain animals with desirable characteristics are selected from a mixed population and then breed together, and then the offspring with the desired characteristics are selected and also breed together - so it continues through generations until all offspring have the desired characteristics. Name of example: Belgian Blue Cattle Biological
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Deoxyribonucleic acid, commonly known as DNA, is the carrier of genetic information and the building blocks of all organisms. It is also the building block for both the defense and prosecution in criminal cases. This paper will explore the history of DNA profiling in the criminal justice system. While it is a common misconception that James Watson and Francis Crick discovered DNA in the 1950s, it was actually discovered in the 1800s. The molecule now known as DNA was first identified in the 1860s
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organism, however primitive. For example, the smallest genetic organism known to exist is the Mycoplasma genitalium (a bacterium that lives in the urinary and genital tracts of humans), which has around 500 genes. Scientists have attempted to remove the genes (the genetic material) from this organism to see at what point it could no longer function, i.e. at what point it ceases to be and dies. This would give them an idea of the minimum amount of genetic material required for life. They concluded that they
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