Question

The early assay employed for measuring penicillin activity were based upon the quantity required to prevent growth of S. aureus over

a.

20 mm diameter zone using the cylinder plate method of assay

b.

24 mm diameter zone using the cylinder plate method of assay

c.

200 mm diameter zone using the cylinder plate method of assay

d.

None of the above

Posted under Microbiology

Answer: (b).24 mm diameter zone using the cylinder plate method of assay

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Q. The early assay employed for measuring penicillin activity were based upon the quantity required to prevent growth of S. aureus over

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