Yes. A professor at cal poly was studying this years ago. I posted a link on here about that quite a whole ago. All you need is a cell or two, rolling circle pcr, the knowledge not to destroy the embryo, or to refresh it or test before freezing etc. not sure what became of his research, whether they got appropriate licensing etc.
It's probably past time that one really needs pha animals. Th animals are still "needed" to produce hair and the absence of a hock joint (kidding) and plus, aj needs it so he can take carriers to Denver.