NEET2026BiologyChapterActual
Which of the following is a non-ionizing radiation that can cause DNA damage leading to neoplastic transformation?
Options
- AX-rays
- BGamma rays
- CUltraviolet rays
- DBeta particles
Correct answer
C. Ultraviolet rays
Step-by-step solution
Radiations are categorized into ionizing and non-ionizing radiations. Ionizing radiations like X-rays and gamma rays cause DNA damage by ionizing molecules and producing reactive oxygen species or direct strand breaks. Non-ionizing radiations like Ultraviolet (UV) rays cause DNA damage primarily by forming pyrimidine dimers (such as thymine dimers) in the DNA strand. This damage can lead to mutations and neoplastic transformation (cancer) if not repaired correctly. Beta particles are a type of ionizing particulate