Question

which is the most efficient way to avoid dna mutations from uv radiation?
○ avoid getting x - rays at the doctor’s office.
○ avoid protective shields during x - rays.
○ avoid uv radiation by wearing sunscreen.
○ avoid uv radiation by using a tanning bed.

Explanation:

To determine the most efficient way to avoid DNA mutations from UV radiation, we analyze each option:

• "Avoid getting X - rays at the doctor’s office": X - rays are a different type of radiation (ionizing) and not related to UV radiation avoidance, so this is incorrect.
• "Avoid protective shields during X - rays": This would increase exposure to X - rays (not UV) and is unsafe, so it's wrong.
• "Avoid UV radiation by wearing sunscreen": Sunscreen helps block UV rays from the sun, which are a major source of UV radiation that can cause DNA mutations. This is a valid method.
• "Avoid UV radiation by using a tanning bed": Tanning beds emit UV radiation, so using them would increase exposure, not avoid it.

Answer:

C. Avoid UV radiation by wearing sunscreen