Question

Explain antibiotic resistance observed in bacteria in light of Darwinian selection theory.

Answer 1

According to Darwin's natural selection theory, Only those organisms that can The organisms that can adapt to the changing environment will survive and those organisms that cannot embrace the change in their environment will be eliminated. So, organisms tend to acquire new characteristics in order to survive and continue their population. When people started using penicillin most bacteria were susceptible to penicillin and were easily killed in the presence of penicillin. However, with time the bacteria developed methods to fight the antibiotic and survive in the presence of penicillin. MRSA (Methicillin-Resistant Staphylococcus aureus) is one good example of how well the bacteria develop drug resistance over time.