Articles > Mutagen definition – quiz Mutagen definition – quiz Quiz Choose the best answer. 1. A substance that impairs DNA, resulting in mutation Carcinogen Mutagen Teratogen 2. A substance that induces mitosis, resulting in tumor growth Carcinogen Mutagen Teratogen 3. Nucleobase sequence is altered due to a mutagen action DNA damage Oxidative damage DNA intercalation 4. Mutagen inserts between two complementary strands of DNA DNA damage Oxidative damage DNA intercalation 5. Jumping genes are an example of a ________. physical mutagen chemical mutagen biological mutagen Send Your Results (Optional) Your Name To Email Time is Up!