Interface - The agreed upon way that a function is called. Example: The toaster, microwave oven, and blender in my home all have the same US 120 volt 60 Hertz interface. I can use any plug on the counter for any of them. Facade Pattern / Bridge Pattern - A go-between between 2 interfaces.
Germline Gene Transfer. Gene transfer represents a relatively new possibility for the treatment of rare genetic disorders and common multifactorial diseases by changing the expression of a person's genes. Typically gene transfer involves using a vector such as a virus to deliver a therapeutic gene to the appropriate target cells.
Gene transfer in eukaryotes. Some bacteria can transfer genes across biological domains These system is exploited with GMO Example: Agrobacterium tumefaciens is a causative agent of crown gall disease. A tumor inducing plasmid (Ti) that can be transferred via conjugation to plant cells.