Simplify the following text for a Grade 14 native English-speaking person.
Original: Andrew Zachary Fire ( born April 27 , 1959 in Palo Alto , California ) is an American biologist and professor of pathology and genetics at Stanford University School of Medicine .
Simplified: Andrew Zachary Fire ( born April 27 , 1959 ) is an American biologist and professor of pathology and of genetics at the Stanford University School of Medicine .