In 1960, Meselson moved 3,000 miles across the nation to begin his career at Harvard as an associate professor of molecular biology.
He later served as a professor of biology for 12 years and has held his current title since 1976.
During his 37 years at Harvard, Meselson has taught a number of courses.
Meselson says that he believes the best way to master a subject is to teach it.
But with all of his activities, Meselson does not have much spare time.
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However, when he finds the time, Meselson said he enjoys retreating to his family farmhouse in Woods Hole, Mass. where he grows eggplants and tomatoes.