Drosophila Melanogaster, Or Better Known As The Common Fruit Fly

1492 Words Apr 28th, 2016 6 Pages
Drosophila Melanogaster, or better known as the common fruit fly, is found all over the world and referred to as the cosmopolitan species (Mitrick, 2010). This fruit fly has three main body parts, which include the head, the thorax, and the abdomen. On males, the bottom half of the abdomen is black, while on the female, each segment of the abdomen is striped black. Drosophila have four main stages to their life cycle. These include: egg, larva, pupa and adult. The eggs small and translucent eggs take about one day to hatch after they have been laid. Next larva are formed. Larvae crawl through the food, eating and growing as they go, and later go through three molts only to climb up and glue themselves on the side of the vile after about 4 days of being hatched. This prepares them for the next stage, the pupa. Pupa are the cocoons when the larva metamorphose into adults. This stage lasts for five days. Lastly, adults emerge from the pupa as the metamorphosis is nearly complete. After an hour, the drosophila are ready to take flight and after eight hours, start mating to start the process all over again. The main purpose of this experiment was to demonstrate the law of independent assortment using eye color of the Drosophila Melanogaster. Independent assortment is the formation of random and new combinations of genes on a chromosome.
There were three mutations that were to be determined by the completion of this lab; the w (white) mutation, the v (vermillion);bw (brown)…

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