Introduction for Fly Lab.docx - Kalli Rohloff Bhatia LSC...

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Kalli Rohloff Bhatia LSC 348 Fundamentals of Genetics Lab 9/24/2018 What Enables Drosophila Wingless Flight Introduction: The subject of many genetic experiments is the common fruit fly, Drosophila melanogaster . They are used due to their adaptable qualities of being genetically modifiable. They are also fairly easy to work with and are able to reproduce in large quantities of flies and embryos in a variety of simple media cultures in the experiments. The fruit flies go through a four stage life cycle as follows egg, larva, pupa, and fly (Jennings, 2011). Their reproduction cycle goes for about ten to twenty days total when it is kept at 25 degrees Celsius. When the egg gets fertilized by the sperm, the embryo will begin to develop in the egg for a short time. Then the embryo hatches into a larva. During this time it continues to grow for about more five days (Jennings, 2011). The larva then pupates and goes through metamorphosis to an adult fly. A large amount of embryonic and larval tissue will be destroyed during the metamorphosis phase (Jennings, 2011). After the flies are fully through the first three stages of the life cycle their sexes can be determined. They are determined by their abdomen tip, abdomen markings, and the number of abdomen segments (Demerec, Kaufman, Spradling, 1996).
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