Complex sentence: Joe Hin Tjio (2 November 1919--27 November 2001), was an Indonesian-American cytogeneticist renowned as the first person to recognize the normal number of human chromosomes.
Split into simpler sentences: Joe Hin Tjio (2 November 1919--27 November 2001), was an ndonesian-born American cytogeneticist. He was renowned as the first person to recognize the normal number of human chromosomes.