Question

compared to healthy cells, certain cancer types have elevated levels of deoxycytidine kinase, an enzyme than converts the prodrug cytochlor to its active uridine derivative. the active drug incorporates into dna, giving the cancer cells increased sensitivity to radiation treatment. what type of cancer treatment is cytochlor?
○ immunotherapy
○ radiation
○ chemotherapy
○ targeted therapy

Explanation:

Cytichlor is a prodrug. Chemotherapy uses drugs (like Cytichlor which is converted to an active form) to treat cancer. Immunotherapy uses the immune system. Radiation uses radiation. Targeted therapy targets specific molecules. Since Cytichlor is a drug (prodrug) used in treatment, it's chemotherapy.

Answer:

C. chemotherapy