Old Yeller-Belly interview footage of Homer disowning Santa's Little Helper. He becomes Suds' new owner and takes the family's fortunes to himself, much to the Simpsons' discomfort, and Homer is wracked with complete remorse for saying such a horrible thing on TV. Figuring that if they can get Duffman to replace Suds as the Duff mascot, they can get their dog back, the Simpsons seek Duffman, who has become an ordinary man named Barry Duffman who helps the less fortunate (by teaching math at a local halfway house). The Simpsons ask him to help the family get Santa's Little Helper back at
Helper dependent virus and capsid encoding DNA, plus helper DNA. Every cell that is successfully transfected with all three DNA fragments will produce the necessary proteins to produce infective viruses. These viruses will only have transgenic DNA encapsidated and therefore once they've infected a patient's cell, they will not be capable of reproducing. Helper dependent viruses can also occur in nature without being "gutted". The term satellite virus has been given to a large group of viruses that all require the presence of another virus to replicate. Many of these are plant viruses, but animal viruses can be seen in the case of