Fruit Fly Lab Report
Introduction
Gregor Mendel, the father of Genetics, experimented on many different things that now help us understand inheritance. His famous experiments include the ones he performed on pea plants to show the system of heredity. After a plentiful amount of experiments, he identified that specific traits show up in the offspring without any blending of parental characteristics (M.Nirenberg). Mendel discovered the principles of independent assortment, which states that allele pairs split independently during the making of gametes. This means that the traits are transmitted to the offspring independently, like in this case the white eye gene and the vestigial wing gene (C. McPhee) the Different types of inheritance patterns are Autosomal dominant, …show more content…
Drosophila Melanogaster feed on fresh or decomposed fruit. We use a 1:1 ratio of instant medium to distilled water for the medium in culture vials that the flies will have to develop in. After making the medium, they have to be sprinkled with one or two grains of dry yeast to feed the flies. For the P1 and F1 cross, two culture vials V1 and V2 will be used just incase one vial doesn’t show as optimal breeding or medium as the other vial. When we isolate the flies and transfer them from one vial to the next, they have to be anaesthetized with CO2. By surrounding the flies in CO2 in the vial, they will be temporarily knocked out so we can handle them in easily. Once the flies are anaesthetized, we can pick up the flies with a camel’s hair paintbrush and transfer them into the new vial after observing them under the microscope, but making sure they are not getting squished or getting hurt. It is necessary to not overexpose the flies to CO2, as overexposure to CO2 can kill the flies and not just temporarily knock them out. Any dead flies are disposed in the fly morgue, which is a small glass jar that consists of a solution of
Gregor Mendel, the father of Genetics, experimented on many different things that now help us understand inheritance. His famous experiments include the ones he performed on pea plants to show the system of heredity. After a plentiful amount of experiments, he identified that specific traits show up in the offspring without any blending of parental characteristics (M.Nirenberg). Mendel discovered the principles of independent assortment, which states that allele pairs split independently during the making of gametes. This means that the traits are transmitted to the offspring independently, like in this case the white eye gene and the vestigial wing gene (C. McPhee) the Different types of inheritance patterns are Autosomal dominant, …show more content…
Drosophila Melanogaster feed on fresh or decomposed fruit. We use a 1:1 ratio of instant medium to distilled water for the medium in culture vials that the flies will have to develop in. After making the medium, they have to be sprinkled with one or two grains of dry yeast to feed the flies. For the P1 and F1 cross, two culture vials V1 and V2 will be used just incase one vial doesn’t show as optimal breeding or medium as the other vial. When we isolate the flies and transfer them from one vial to the next, they have to be anaesthetized with CO2. By surrounding the flies in CO2 in the vial, they will be temporarily knocked out so we can handle them in easily. Once the flies are anaesthetized, we can pick up the flies with a camel’s hair paintbrush and transfer them into the new vial after observing them under the microscope, but making sure they are not getting squished or getting hurt. It is necessary to not overexpose the flies to CO2, as overexposure to CO2 can kill the flies and not just temporarily knock them out. Any dead flies are disposed in the fly morgue, which is a small glass jar that consists of a solution of