Well, arguably if you're considering complete deletion, you're not looking for a 1:1 replacement. (theabundantartist.com)
One mutation, which is complete deletion of the CNGB3 gene, affects Malamutes and Australian Shepherds, while a different single nucleotide mutation in the same gene causes Cone Degeneration in the GSHP breed. (optigen.com)
«We see a complete deletion of the infectious version of the malaria parasite,» said Anthony James, a microbiology and molecular genetics professor at the University of California, Irvine, and the lead author of the report. (scientificamerican.com)