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Two F+ E

Question 28

Multiple Choice

Two F+ E.coli strains are co-cultured in the same flask.One is Strr Thr+ and the other is Genr Thr−.The culture is then plated on minimal media that is supplemented with gentamycin only (not threonine) and a few colonies grow.What sort of genetic exchange is most likely occurring?


A) transformation
B) conjugation
C) transduction
D) electroporation

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