(TCO 6) Several drugs with nearly identical molecular weights are being used for

Question

(TCO 6) Several drugs with nearly identical molecular weights are being used for a diffusion susceptibility test. Which drug would be most effective against the organism that is growing on a Petri plate? (Points : 2)        The drug that did not alter the bacterial lawn
       The drug that has a zone of inhibition of 10mm
       The drug that has a zone of inhibition of 1cm
       The drug that has a zone of inhibition of 15mm
       All of the drugs will be equally effective against the organism.

Explanation / Answer

The effect drug inhibits the bacterial growth in a wide area, so the zone of inhibition is more for such a drug.

So, the correct option is The drug that has a zone of inhibition of 1 cm.

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