🦠microbiology review

Repetitive sequence-based PCR

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

Repetitive sequence-based PCR (rep-PCR) is a molecular technique used to amplify and analyze repetitive DNA sequences in bacterial genomes. It helps in the genotyping and differentiation of microbial strains by generating unique fingerprint patterns.

5 Must Know Facts For Your Next Test

  1. Rep-PCR targets repetitive elements such as REP, ERIC, or BOX sequences in bacterial DNA.
  2. It generates distinct banding patterns on agarose gels that can be used for strain identification.
  3. Rep-PCR is commonly used in epidemiological studies to track microbial outbreaks.
  4. The technique requires specific primers that anneal to the repetitive sequences within the genome.
  5. Results from rep-PCR are analyzed using software to compare genetic similarities among different samples.

Review Questions