NEET Biology question
Consider the following statements regarding antibiotics: I. Antibiotics are chemical substances produced by some microbes that kill or retard the growth of other microbes. II. Penicillin was the first antibiotic to be discovered. III. Fleming discovered penicillin's antibacterial action by observing contamination of a bacterial culture plate by a mould. IV. Chain and Florey established its chemical nature and therapeutic/clinical value. Which of the above statements are correct?
Answer: (D)
Solution
All four statements correctly describe antibiotics and the history of
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account