Particularly useful for the large polytene chromosomes found in its salivary glands, its famous mutants include clock, shaker, ultrabithorax, and white-eyed.
Enhancer traps are often used in combination with P-element induced mutagenesis in this organism. Krüppel negatively regulates the pair-rule enhancer eve stripe 2 in this organism, which also contains the morphogenic maternal effect gene bicoid discovered by Nüsslein-Volhard and Wieschaus. In this organism, serrate and delta ligands function in the Notch signaling pathway, which when mutated produces abnormal macrochaetae. Particularly useful for the large polytene chromosomes found in its salivary glands, its famous mutants include clock, shaker, ultrabithorax, and white-eyed. For 10 points, name this model organism with four pairs of chromosomes that was studied by Thomas Hunt Morgan, a genus of insect.
Enhancer traps are often used in combination with P-element induced mutagenesis in this organism.
Drosophila melanogaster [or Drosophila melanogaster; or common fruit flies; or vinegar flies; prompt on flies]