Biology · Evolution and Genetics
From an evolutionary standpoint, many bacteria have become resistant to penicillin because:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Penicillin causes directed gene mutations that are beneficial to bacteria.
- 2Previously existing resistant forms survived and reproduced better than non-resistant forms in the presence of the drug.✓
- 3The hospital environment completely inhibits competition among bacterial species.
- 4Penicillin directly triggers the instant de novo synthesis of resistant proteins.
Correct answer
Previously existing resistant forms survived and reproduced better than non-resistant forms in the presence of the drug.
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