10/10/2011

3.33- Antibiotic resistance

Understand how resistance to antibiotics can increase in bacterial populations
  • Staphylococcus aureus causes skin and lung infection
  • Can be treated with methicilline (antibiotic which kills Staphylococcus aureus)
  • The susceptible form of Staphylococcus aureus is the form which can be killed by the antibiotic
  • There was a random mutation to the genotype of Staphylococcus aureus
  • This didn't die when given the antibiotic, also known as the resistant form (MRSA)
  • The mutation is helpful to the Staphylococcus aureus as it survives the antibiotic


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