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·       In one experiment Lederberg used Gal+ and Gal– strains of E. coli. One half of a...

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Biology

·       In one experimentLederberg used Gal+ and Gal– strains ofE. coli. One half of a plate that contained medium withgalactose as the only carbon source was inoculated with phages thatcame from lysed cells of the Gal+ strain. The other halfof the plate was left uninoculated. A Gal- strain wasthen placed on the entire plate. Numerous colonies appeared on thehalf of the plate inoculated with the phage, whereas only a fewappeared on the half that was not inoculated with phage. Explainwhat happened using appropriate terminology.

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This experiment demonstrates the presence or absence of both prototrophs and auxotrophs If a culture of E coli cells are plated on a petriplate having the complete media then both auxotrophs and prototrophs would grow Any strain of bacteria that can utilize the    See Answer
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