shazbaz
Forum Junior
Topics: 15
Posts: 51
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Bacterial strain X is resistant to ampicillin and sensitive to gentamicin. Bacterial strain Y is resistant to gentamicin and sensitive to ampicillin. Bacterial strains X and Y are grown in mixed culture in medium without antibiotics, then the culture is plated on medium containing both ampicillin and gentamicin. Bacterial colonies grow on the plates. In a second experiment, DNase is added to the mixed culture medium. When this mixed
culture is plated on medium containing both antibiotics, no colonies grow. Assuming that bacterial cells are impermeable to DNase, which of the following processes best explains these observations?
A) Conjugation
B) Mutation
C) Transduction
D) Transformation
E) Transposition
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| bioguy
Forum Guru
Topics: 59
Posts: 909
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Transformation
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| vaibhavbora
Forum Senior
Topics: 7
Posts: 127
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D) Transformation
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VB
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