In Lederberg's replica plating, streptomycin resistant strain can develop by using ?

Minimal medium and Streptomycin

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Complete medium and Streptomycin

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Only minimal medium

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Only complete medium

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Solution

The correct option is B Complete medium and Streptomycin
Some bacteria from their population are able to grow in streptomycin containing medium because they carry streptomycin resistant gene. These strains get selected in streptomycin containing medium. Lederberg, by performing replica plating experiment, using the medium with streptomycin antibiotic, demonstrated the process of selection of antibiotics resistant strains.
Therefore, the correct answer is option B.

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