Complex sentence: Douglas C. Prasher (born August 1951) is an American molecular biologist, known for his work to clone and sequence the gene for green fluorescent protein (GFP) and for his proposal to use GFP as a tracer molecule.
Split into simpler sentences: Douglas C. Prasher (born August 1951) is an American molecular biologist. He is known for his work to clone and sequence the gene for green fluorescent protein (GFP) and for his proposal to use GFP as a tracer molecule.