Which are important aspects of a complementation test done by coinfection of bacterial cells with phage T4? (Select all that apply.)

A) using sufficient amounts of two phage strains, each with different mutations
B) infecting bacteria with two phage strains that have recessive mutations
C) counting the number of plaques that are produced after infection of E. coli K(?) cells
D) recovering phage from the plaques after growth and lysis


A) using sufficient amounts of two phage strains, each with different mutations
B) infecting bacteria with two phage strains that have recessive mutations

Biology & Microbiology

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