Microbiology - MCQ Practice Questions

Practice free Microbiology multiple-choice questions with detailed answers and explanations. Perfect for competitive exam preparation.

100 questions | 100% Free

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All topics Bacteria & Viruses Fungi & Parasites Immunology Medical Microbiology Industrial Microbiology Environmental Microbiology Virology Bacteriology Microbial Genetics Fermentation Technology

Q.21Hard

Which mechanism explains bacterial persistence in chronic biofilm infections despite antibiotic treatment?

Q.22Hard

During the COVID-19 pandemic, variant B.1.1.7 (Alpha) showed increased transmissibility. Which structural modification of the SARS-CoV-2 spike protein primarily contributed to enhanced binding affinity to human ACE2 receptors?