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Start Over You searched for: Creator Singer, Maxine ✖ Remove constraint Creator: Singer, Maxine Format Text ✖ Remove constraint Format: Text Subject Cloning, Molecular ✖ Remove constraint Subject: Cloning, Molecular Genre Letters (correspondence) ✖ Remove constraint Genre: Letters (correspondence) Story Section Restriction Enzymes and the "New Genetics," 1970-1980 ✖ Remove constraint Story Section: Restriction Enzymes and the "New Genetics," 1970-1980