RT-PCR · Pathology

In molecular oncology, RT-PCR is frequently used to detect which of the following?

  1. Chromosomal trisomy in cancer cells
  2. Specific chromosomal fusion gene transcripts
  3. Single-base deletions in non-coding regions
  4. The presence of mitochondrial DNA mutations
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Correct answer: Specific chromosomal fusion gene transcripts

Translocations result in fusion genes that produce unique mRNA transcripts. RT-PCR is highly sensitive for detecting these transcripts, such as the BCR-ABL1 fusion in Chronic Myeloid Leukemia, which is used for diagnosis and monitoring minimal residual disease.

Difficulty: Medium Question 11 of 20

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