Through experimenting designed to provide information that will ultimately prove useful in the treatment of hereditary diseases, mice have received bone marrow transplants that give them a new gene.
(a) through experimenting designed to provide information that will ultimately prove
(b) through experiments designed to provide information ultimately proving
(c) in experimentation designed to provide information that ultimately proves
(d) in experimenting designed to provide information ultimately proving
(e) in experiments designed to provide information that will ultimately prove