Editing Macroevolution (section)

=== "Macromutations": Single mutations leading to dramatic change ===
{{Multiple image
| image1            = 202208 Fruit fly female adult from a overhead view.svg
| image2            = 202208 Fruit fly bithorax complex.svg
| footer            = Mutations in the [[Ultrabithorax]] gene lead to a duplication of wings in fruit flies.
| total_width       = 300
| caption1          = Normal phenotype
| caption2          = Bithorax phenotype
| caption_align     = center
}}
While the vast majority of mutations are inconsequential, some can have a dramatic effect on morphology or other features of an organism. One of the best studied cases of a single mutation that leads to massive structural change is the [[Ultrabithorax]] mutation in [[Drosophila melanogaster|fruit flies.]] The mutation duplicates the wings of a fly to make it look like a [[dragonfly]], a different order of insect.