Assume that you have just demonstrated genetic recombination (e.g., when a strain of genotype a b⁺ is present with a strain of genotype a⁺ b, some recombinant genotypes, a⁺ b⁺ and a b, are formed) in a previously unstudied species of bacteria. How would you determine whether the observed recombination resulted from transformation, conjugation, or transduction?