Challenge question Which of the following is a mismatch Radi
     Challenge question: Which of the following is a mismatch? Radioisotopes: tumors UV radiation: skin cancers, blindness Formalin or formamide: lung cancer Ethidium bromide: DNA mutations SDS: skin cancer 
  
  Solution
The option SDS and Skin cancer is a mismatch, because SDS is not a carcinogen and does not cause skin cancer.

