Two different strains of a mutant phage infect a single bacterium.One phage strain is d^- and the other is e^-.Some of the progeny phages are genotype d⁺e⁺, and some are d^-e^-.What genetic phenomenon does this demonstrate?

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The appearance of phages with both parental genotypes (d⁺e⁺) indicates that recombination has occurred between the two strains during infection. This is a genetic phenomenon in which the genetic material from two different sources is combined to produce a new genotype. Complementation refers to a situation where two different mutations in two different genes can complement each other to produce a wild-type phenotype in a diploid organism. Specialized transduction and generalized transduction are mechanisms of horizontal gene transfer in bacteria, both of which involve the transfer of genetic material from one bacterium to another. Differentiation refers to the process of cells becoming specialized for specific functions during development.

Two Different Strains of a Mutant Phage Infect a Single