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.
Wave deposition. 1  When the velocity of the wave currents or the longshore currents decreases, the transported material will be deposited. 2  Wave deposition is most active in bays where the wave energy is dissipated. 3  Features produced by wave or longshore current deposition 4  -. Beach-A sand deposit along the shoreline. 5  Baymouth bar-A linear sand 6  ... Spi