Gene transfer or genetic engineering involves the transfer of genes from one species of organism to another species, i.e.from a donor into a recipient organism. It is seen by some as a simple extension of other biotechnological processes, whereas to others it is considered as a development with much more sinister implications. In fact there has been pressure to use the term biotechnology, which has gained some public acceptance, to cover both. I hope my answer has come to your help. God bless and have a nice day ahead!