Drosophila melanogaster: Fruit Fly, Genetics and Scientific Research

Category: General Science — Genetics and Biotechnology

Drosophila melanogaster, commonly called the fruit fly or vinegar fly, is a small insect widely used as a model organism in genetics, developmental biology and biomedical research.

Key facts

  • Classification: Phylum Arthropoda; class Insecta; order Diptera.

  • It has a short generation time and produces many offspring.

  • Its genome has been extensively studied.

  • It has four pairs of chromosomes: three pairs of autosomes and one pair of sex chromosomes.

  • Many fundamental biological processes are conserved between fruit flies and other animals, including humans.

Scientific importance

  • Thomas Hunt Morgan used fruit flies in pioneering experiments that helped establish the chromosome theory of inheritance.

  • Research with Drosophila has contributed to understanding genes, mutations, embryonic development, neural function and ageing.

  • It is useful for investigating biological mechanisms relevant to human diseases, although findings do not always translate directly to humans.

UPSC key pointers

  • Drosophila melanogaster is a model organism in genetics.

  • Thomas Hunt Morgan's work with fruit flies supported the chromosome theory of inheritance.

  • It has four pairs of chromosomes.

  • It is an insect, not a bacterium or a worm.