A filter capable of preventing bacteria from passing is placed at the bottom of a U tube to separate the two sides. Streptomycin-resistant cells of a bacterial strain are placed on one side of the filter and streptomycin-sensitive cells are placed on the other side. After incubation, the side of the tube that originally contained only streptomycin-sensitive cells now contains some streptomycin-resistant cells. Give three possible reasons for this observation. What further experiments would you do to determine the correct explanation?
Three possible reasons:
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Get Help Now!- The streptomycin sensitive cells mutated to resistance.
- The streptomycin sensitive cells were transformed to streptomycin resistance by DNA- mediated transformation
- The streptomycin sensitive cells were transduced to streptomycin resistance by transduction
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