Biology · Bacterial Immunity and CRISPR Systems
How do bacteria naturally protect themselves from recurring viral attacks?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1By creating a heat-resistant shield around their cell walls
- 2By using stored viral DNA fragments to recognize and cut returning viral DNA✓
- 3By evolving into a different species that the virus cannot recognize
- 4By releasing non-specific enzymes that destroy all surrounding genetic material
Correct answer
By using stored viral DNA fragments to recognize and cut returning viral DNA
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