1 Insertion â when a base is added to the sequence. 2  Deletion â when a base is deleted from the sequence.  Copy number variation (CNV) is a type of mutation where large chunks of DNA are inserted, repeated or lost. These regions of DNA can be between 10,000 and 5,000,000 bases long.
Wind deposition can result in dunes and loess deposits.
Features of wind erosion. Landscapes formed from the work of wind result from either the removal of fine particles, or the sculpting effects of material in movement. Deflation lifts and removes loose particles from the surface.eatures of wind erosion. Landscapes formed from the work of wind result from either the removal of fine particles, or the sculpting effects of material in movement. Deflation lifts and removes loose particles from the surface.