Question

Radioactive wastes contribute to

• A. Gene mutations
• B. Cataracts
• C. Allergy
• D. All of these

Answer 1

The correct option is A

Gene mutations

The hazards posed by radiation depend on its interaction with living tissues. At the molecular level, the electrons set in motion by ionizing radiation can directly affect cellular macromolecules such as DNA. Radiation can also act indirectly by ionizing water molecules to create reactive molecules or free radicals that can in turn, attack DNA or other cellular components as oxidising agents. Both direct and indirect mechanisms cause damage to the cell, particularly as a result of damage to DNA, or gene mutation.