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Ernest chain and Howared Florey's contri...

Ernest chain and Howared Florey's contribution was

A

discovery of streptokinase

B

isolating the bacterial plasmid

C

dicovery of the DNA sequencer

D

establishing the potenial of penicillin as an effective antibiotic

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The correct Answer is:
D
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Which of the following statements regarding antibiotics is not correct ? (i) Antibiotics are the attenuated microorganisms which in small concentration can kill or retard the growth of other harmful microorganisms. (ii) Penicillin was the first antibiotic discovered by Alexander Fleming (1928) while working on bacterium Staphylococcus aureus. (iii) The full potential of penicillin as an effective antibiotic was established by Ernest chain and Howard Florey. (iv) Fleming, Chain and Florey were awarded the Nobel Prize in 1945

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