The component that sensitizes bacteria and virus to UV irradiation_______________?
Correct answer: D. Nucleic acids
- A. Lipids
- B. Carbohydrates
- C. Inorganic salts
- D. Nucleic acids
Explanation
Ultraviolet radiation damages nucleic acids by producing pyrimidine dimers, especially in DNA, which blocks replication and transcription. Lipids and carbohydrates are not the principal UV-sensitive targets responsible for microbial inactivation.
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