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Sir Alexander Flemming extracted penicillium from
A. Penicillium citrinum
B. Penicillium naatum
C. Pencicillium chrysogenum
D. Bacillus brevis

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Correct Answer - B
First antibiotic pencillin from blue -green fongus by Propioni bacteria notatum in ager-ager medium, discovered by Sir Alexander Flemming in 1928.

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