Complex sentence: Voeller graduated with a bachelor's degree from Reed College in 1956, and after winning a five year fellowship to the Rockefeller Institute, he gained a Ph.D. in biology in 1961.
Split into simpler sentences: Voeller graduated with a bachelor's degree from Reed College in 1956. He was awarded a five year fellowship to the Rockefeller Institute, and earned a Ph.D. in biology in 1961.