Complex sentence: Since the discovery of the rhodopsin gene, more than 100 RHO mutations have been identified, accounting for 15% of all types of retinal degeneration, and approximately 25% of autosomal dominant forms of RP.
Split into simpler sentences: Since the discovery of the rhodopsin gene, more than 100 RHO mutations have been identified, accounting for 15% of all types of retinal degeneration. Studies show that mutations in this gene are responsible for approximately 25% of autosomal dominant forms of RP.