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Which of the following is a protooncogene?

Question and options

Which of the following is a protooncogene?
  1. HER2
  2. APC
  3. RB
  4. BRCA-1

Answer and explanation

Correct answer: A - HER2
HER2 (ERBB2) is a proto-oncogene (receptor tyrosine kinase). APC, RB and BRCA1 are tumour suppressor genes.

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