Transcript Evolution and Antibiotic Resistance

Evolution and Antibiotic
Resistance: TB
GSI
Evolution and Antibiotic Resistance
• What is Antibiotic Resistance?
• Antibiotic: drug that kills bacteria
• When resistant, bacteria no longer
respond to drug
• What is natural selection?
Evolution and Antibiotic Resistance
Watch “Why Does Evolution Matter Now?” video at:
http://www.pbs.org/wgbh/evolution/educators/lessons/lesson6/act1.html
Answer the following questions about the video segment:
•
•
•
•
Why is the Russian prison system considered to be "ground zero" in the
fight against TB?
What is responsible for the evolution of TB strains that are resistant to
multiple drugs?
How does the misuse of antibiotics affect the evolution of disease-causing
bacteria? Use the theory of natural selection to explain the growing
resistance to antibiotics.
Why should we care about a resistant strain of TB in Russia?