Before revision: Mutations in the human p53 gene, for example, can be induced by exposure to benzo(a)pyrene and the mutated copy of the p53 gene can be inserted into mouse genomes.
After revision: (BaP)Mutations in the human p53 gene, for example, can be induced by exposure to benzo(a)pyrene and the mutated copy of the p53 gene can be inserted into mouse genomes.