"Chromatography experiment of the drosophila eye" Essays and Research Papers

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    Chromatography is a process used to separate mixtures. The word chromatography is derived from the Greek words ‘khroma’ and ‘graphein’ meaning ‘color’ and ‘to write’ or to represent. Although there are a couple different types of chromatography‚ in each case a substance is placed onto or into a medium and a solvent is passed through the test substance. In chromatography science‚ the solvent is called the mobile phase or the carrier fluid and the medium is called the stationary phase. There are four

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    Candy Chromatography

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    Candy chromatography is a method of analysis of separating and comparing of dyes used in candies and food coloring. It is also a proven method to analyze candy and its complex mixture‚ without having to taste it. These complex mixtures can be separated back into pure substances. To find out the ingredients of a favorite candy‚ chromatography would help to define every ingredient found in the candy sample. The word chromatography is derived from the two Greek words‚ "chroma" meaning color

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    Abstract Drosophila Melanogaster is one of the best organisms to study when researching genetics; in particular sex linked genes on the X chromosome. The principle reason for this study was to determine what genes were transferred to the males from the females‚ as the males only inherit one X chromosome. Two experiments were conducted in which female and male flies were crossed. The first experiment was a cross between 5-trait females and wildtype males; the second experiment was a cross between

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    Gas Chromatography

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    How Chromatography Helps The Human Race Chromatography is the separation of a mixture by passing it in solution or suspension or as a vapor (as in gas chromatography) through a medium in which the components move at different rates. “Chromatography is done by making of a mixture move past the solids‚ or across the surface of a solid‚ like paper. The mixture is poured onto a solid surface. As the different components of the liquid run down the solid‚ some of them move more slowly than other. A component

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    Drosophila Fly Summary

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    lab.Professor Lee has been in the biological science department in UCSC since 2007. his current research includes using Drosophila fly to study genetic and development biology. I was impressed with Lee’s techniques into studying Alzheimer’s with the Drosophila fly(fruit fly). While I was reading the research paper‚ I had this unsettling question to why using precisely Drosophila fly to study Alzheimer’s. However‚ during his lecture or presentation‚ I came to find out that the main reason he was

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    Drosophila melanogaster are a species more commonly known to us as fruit flies. They are extremely important in biological research due to the fact that they make excellent model organisms for understanding genetics. Reasons behind their frequent use include; easily cultured in the lab‚ short generation time‚ and they can produce many offspring. In this lab report‚ we began with three different strains of Drosophila. Introduction The common form of Drosophila is known as the “wild type”‚ any fly

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    Drosophila: Fruit Fly Lab

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    initially entered labs 100 years ago. Thomas Hunt Morgan‚ who lived from 1866 to 1945‚ was the founder of drosophila genetics. Thomas preformed his research in Morgan lab at the Columbia University in 1910. Here was when they found a famous mutation‚ know as the white-eyed fly. Quite an accomplishment was this discovery‚ but the end of the 1980’s there were 3‚000+-recorded mutations. Now drosophila is very popular; so popular‚ it would be almost impossible to list the number of things that are being

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    Discussion The goal of the experiment was to determine what gene or genes are responsible for the white eye phenotype of two strains of Drosophila melanogaster. According the literature‚ the w+ gene is located on the X chromosome at 1.5 genetic map units (1). In addition‚ the st+ and bw+ genes are autosomal and assort independently‚ meaning they are two different genes located on two different chromosomes. It is stated that the bw+ gene is located on the 2R chromosome at 104.5 map units (2)

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    Introduction In most kitchens the small flies that are found are Drosophila Melanogaster also called fruit fly. They are often brought in by ripened tomatoes‚ grapes and other perishable items from the garden. Drosophila melanogaster is a little two winged insect about 3mm long two winged insect that belongs to the Diptera‚ the order of the flies. The drosophila egg is about half a millimeter long. Fertilization takes about one day the embryo to develop and hatch into a worm-like larva. The larva

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    Candy Chromatography

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    Candy Chromatography Background info: Paper chromatography is a logical technique used to separate works of a solution. Three examples of how we apply this technique to real-life would be: contaneminants in water‚ separation of plant pigmentation‚ and analysis of narcotics. Source: http://www.discoveriesinmedicine.com/Bar-Cod/Chromatography.html#b Purpose: To find out why candies are different colors. * Materials: Candy with a colored coating‚ like Skittles® or M&Ms® (4 different

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