Evolution caught red-handed
Fly Y chromosome stole a gene from elsewhere in insect’s genetic library
![fruit fly](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/09/091115_ss_flagrante-delicto_free.jpg?fit=860%2C458&ssl=1)
SMOKING GUN A gene on the Y chromosome of Drosophila melanogaster fruit flies was clearly copied from another fly chromosome, researchers report.
André Karwath/Wikipedia (CC BY-SA 2.5)