What causes increased antibiotic resistance in a bacterial population within a hospital environment after only some bacteria acquired resistance via a plasmid?

💡 Explanation

Horizontal gene transfer via conjugation spreads resistance rapidly because plasmids carrying resistance genes are transferred between bacteria, even across species, therefore, leading to a widespread increase in antibiotic resistance rather than solely relying on slower mutation and selection processes.

• What distinguishes glycogen synthesis from gluconeogenesis in the liver during periods of hyperglycemia?
• If a hiker ascends to high altitude, experiencing hypothermia despite wearing insulated clothing, which mechanism explains why core body temperature continues to drop despite maximal shivering?
• Why does marathon running in high humidity increase risk of exertional heat stroke, despite physiological thermoregulation?
• An elderly patient presents with accumulating amyloid plaques in the brain. Which mechanism explains why age-related decline reduces amyloid clearance via the glymphatic system?
• Why does reduced alveolar surface area during emphysema primarily impair oxygen uptake?
• Why does continued stimulant abuse escalate compulsive drug-seeking behavior related to the nucleus accumbens?