"Visualizing Genetic Copy-and-Paste Machinery in Action"
Researchers have reported the X-ray and cryoelectron-microscopy structures of the machinery that enables LINE-1 (L1) DNA elements to self-duplicate and spread throughout mammalian genomes, shedding light on the process of chromosome evolution. This biological 'copy and paste' mechanism provides insight into how and where this DNA element is duplicated, offering valuable information for understanding genome evolution and molecular biology.