Drosophila Melanogaster

Good Essays
Genetics is a fundamental part of life as it is related to how we receive and develop traits from our parents and what could be given to our children. The concept of genetics was started around 1856 by Gregor Mendel who conducted experiments with pea plants and established many of the rules of heredity now used in modern genetics. According to Corcos and Monaghan (1984) Mendel did not consider the two laws written by him to be laws at all but to be assumptions or a hypothesis that were later implemented as laws that we now use today. In the experiment conducted the species known as Drosophila melanogaster was used to help demonstrate heredity with each set of flies possessing a different mutation from the wild type. D. melanogaster are often …show more content…
According to Butz and Hayden (2014), the durations of the egg, larva, and pupal stages remain constant regardless of the parents age but the number of offspring produced by the parent would be greatly decreased which could lead to a lower number of results due to the lack of flies being produced. D. melanogaster have both x and y chromosomes like humans but the sex of the fruit flies is determined by the ratio of x chromosomes and the y chromosomes encode genes for making sperm. Baker and Ridge (1980) both claimed that sex determination in D. melanogaster is under the control of the X chromosome to autosome ratio and with at least four major regulatory genes, which can help explain how to identify sex-linked inheritance within the flies. The purpose of the experiment was to become familiar with the techniques of working with D. melanogaster, investigate basic principles of Mendelian genetics, and to understand the utility of chi square analysis. The mutated phenotype received was known as the bar eye type which vastly differs from the round eye wild type. Based off the parent generation females being mostly bar eye and only a couple of males being bar eye, it was predicted that the traits inherited were autosomal

Related Documents

  • Good Essays

    The Drosophila melanogaster has been a novel model organism for researchers for over a century studying various species at a molecular level. Because Drosophila has a short life cycle and easy to manipulate advocates Drosophila as a good model organism. The insight into molecular mechanisms in studying this species is why it has been used for such a long period. This organism is easy to manipulate to observe the changes over time, and because of this the variability among these species allows for…

    • 782 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Drosophila melanogaster are often used as a model organism in laboratories due to the many advantages that the organism provides: short generation time, sexual dimorphisms, cost effectiveness and easiness to maintain, amongst others. The generation time of Drosophila is around 9 – 11 days, and phenotypes in men, such as sex combs, heavily pigmented abdomen, and shape of abdomen and size, makes of Drosophila melanogaster an effective organism to study. In Drosophila melanogaster, the males do not…

    • 572 Words
    • 3 Pages
    Good Essays
  • Amazing Essays

    Drosophila melanogaster, a species of common fruit flies, is widely used for biological research in studies amongst geneticists around the world. For many different reasons, these miniature organisms have become a favorite model organism for geneticists, biologists, physiologists, and many other scientists today, the obvious ones being their low cost, easy maintenance, ten-day generation time, and the fact that they produce large quantities of progeny. Besides these reasons, this species has more…

    • 1739 Words
    • 7 Pages
    Amazing Essays