Google parent Alphabet Inc on Monday named Noble Prize winner Frances Arnold to its board, filling a vacancy left by the retirement of fellow academic Shirley Tilghman. Arnold, who manages a research group at the California Institute of Technology, will serve on the technology giant's nominating and corporate governance committee. Alphabet said she will receive an initial equity award of $1 million in the form of restricted stock units. Arnold won the Nobel Prize in Chemistry in 2018 for pioneering science in enzymes and antibodies. Tilghman, a molecular biology professor, retired from Alphabet's board in February last year.