Fruit Fly Lab Report

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 into a new vial containing a medium. After two weeks, when the insects had laid eggs and the previous eggs had hatched, the same process of transferring them into a new vial was repeated. To transfer the flies properly, the new vial contained a media, yeast, and netting, the stock vial was placed on a table where the researchers tapped it so that the flies remained close to the bottom, avoiding their escape, then a new stock tube was placed on the table and the old one was tapped into the funnel that was placed at the opening of this new stock vial, making the flies transfer from the old vial to the new one, a
On the fifth week of the study the media was observed again, along with recording the numbers of the flies and larvae. Later, an experimental apparatus was used to handle the flies. Two clear tubs and two end caps, along with one T-joiner and one reducer were used, the purpose of the reducer was to attach it to the fly vials and use it to place them into the apparatus, then the apparatus was divided into four equal parts that were labeled, where flies were counted in each of these sections were they had been attached, after doing this, the tubes had four sections marked as “A,” “B, “ “C,” and “D,” by marking them this way it was easier to observe the