Question

Do you know the likely fate of a piece of DNA, which is somehow transferred into an alien organism?

Answer 1

Most likely, this piece of DNA would not be able to multiply itself in the progeny cells of the organism. But,.when it gets integrated into the genome of the recipient, it may multiply and be inherited along with the host DNA. This is because the alien piece of DNA has become part of a chromosome, which has the ability to replicate.