Medical Genetics 2. Gene structure Richard J. roberts and phillip A. Sharp(1993 Nobel Prize winner) made their amazing discovery of the existence of split genes in the adenovirus, when they examined a hybridized nucleic acid molecule made between a adenoviral mrna and its template dna in the electron mIcroscopeMedical Genetics 2. Gene Structure Richard J. Roberts and Phillip A. Sharp (1993 Nobel Prize winner) made their amazing discovery of the existence of split genes in the adenovirus, when they examined a hybridized nucleic acid molecule made between a adenoviral mRNA and its template DNA in the electron microscope