occurred during the experiment was that some flies became stuck in the food source and died. The main cause of this was the fact that the fly vials were stood up (vertically) before the flies had fully recovered from the anaesthetic. This could be overcome in future experiments by ensuring that the vials are kept horizontal until all of the flies fully recover from the anaesthetic. One possible error that may have occurred was that some of the adult flies may have accidentally been left in the vials
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2/2/15 Block 1 Introduction and Background Drosophila melanogaster or more commonly referred to as “fruit flies” have been used for genetic research for over 100 years. During his time at Harvard university‚ Charles W. Woodworth is credited with being the first to suggest fruit flies be used for genetic research. A century later‚ fruit flies are the most widely used eukaryotic organism for genetic research (Drosophila). Their ease of use and rapid rate of reproduction has allowed
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The purpose of this experiment was to determine the F1 genotype of fruit fly traits using the phenotypic ratio of the F2 generation and to express these results of the unknown cross through a Chi-square model and Mendelian genetics. After the experiment‚ it was found that the parents held a heterozygous genotype through using the Chi-square model‚ and that the observed and expected values fall within the Chi-squared value which also falls into the p-value. The Chi-squared value was 5.64‚ the degrees
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To perform this study and observe the behaviors and reactions of Drosophila melanogaster and how they respond to different stimuli and repellents‚ the research members decided to use mutant fruit flies‚ for this reason they lacked wings‚ making their manipulation simpler. In order to carry out this study it was necessary to first obtain an adequate number of flies to observe them throughout the weeks. The research members had the flies accompanied with larvae in stock vials‚ and later transferred these
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Introduction In this lab a study of fruit fly genetics was done these creature are readily used for genetic studies .they are easy to maintain. And the females lay a lot off eggs which develop in about two weeks. Fruit fly’s have for distinct stages‚ the egg‚ larva‚ pupa and adult. the egg and larva stages last for eight days‚ the pupal stage last for six days and then the adult stage which last for many weeks this period of growth is called instars. In this lab a dihybrid cross was performed
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CHARACTER OF THE BOSS IN KATHERINE MANSFIELD’s THE FLY Katherine Mansfield’s short story The Fly is taken from the collection ’Dove’s Nest’ and inspired by her dear brother Leslie’s death‚ it is one of her finest short stories. The Fly is the story of a person haunted for six years by the death of his son. It is the depiction of anguish. Mansfield’s technique in her stories was to make her characters show their thoughts by a kind of mental soliloquy ‘fluttering‚ gossipy‚ breathless with questions
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“The Fly” Having read many pieces of literature through short stories‚ it is evident that each story has its own unique use of symbolism. Diverse characters in each work of literature are used to demonstrate these forms of symbolism. The boss and his inner conflict illustrate a great deal of symbolism in “The Fly” by Katherine Mansfield. The boss’s perception of the actions of the fly creates an interesting view of the comparison of his father-son‚ father-fly relationship. Katherine Mansfield
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Report Investigation 12: Fruit Fly Behavior Abstract: In the lab that was conducted‚ students were supposed to examine the tendencies of fruit flies‚ specifically Drosophila’s‚ to move toward or away from important stimuli that aide in their survival‚ also known as taxis. Another objective for this lab was to identify the patterns and relationships between environmental factors and a living organism. Students are supposed to use two bottles to allow the flies to choose which side they want
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The Tsetse Fly 1. The tsetse fly poses many dangers to the environment and to animals. This fly has been responsible for conveying a disease called African trypoanosomiasis (sleeping sickness). Sleeping sickness can be fatal‚ and in areas of interest it is responsible for 40‚000 deaths per year- just in humans. Considering that there are 23 different species of tsetse flies‚ this could pose a problem. 2. Traditionally‚ scientists would trap the flies using electric blue cloth (this would
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The Physics of Fly-fishin’ What does it take to launch an ultra-light fishing line over 200 feet? A little physics and a lot of feel for the fishing rod‚ that’s what. The trick to doing good is to have the thinner‚ end of the line‚ land on the water first then the fly. The end of the line cushions the fly‚ having the effect that a fly is landing on the water‚ not a piece of nylon string. This may sound easy‚ but it’s a lot harder than it seems. Just getting it to go that far
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