Question

Use the drop-down menus below to match each example to the corresponding type of mutagen.


tanning beds

X-rays

cigarettes

Answer 1

- Tanning beds → Physical mutagen (UV radiation / non‑ionizing radiation) — UV light causes DNA damage (e.g., thymine dimers).
- X‑rays → Physical mutagen (ionizing radiation) — ionizing radiation causes DNA strand breaks and other lesions.
- Cigarettes → Chemical mutagen — tobacco smoke contains chemical carcinogens that cause DNA mutations.