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TAS English QUESTION #10466
Question 1
Despite years of ------- research, the biologists never managed to ------- the gene responsible for the rare disorder.
  • cursory . . overlook
  • painstaking . . isolate✔️
  • haphazard . . confirm
  • superficial . . dismiss
Correct Answer Explanation
Years of thorough ('painstaking') research would be aimed at trying to 'isolate' the gene.