In complementation studies' of the rll locus of phage T4, three groups of three diff...

In complementation studies' of the rll locus of phage T4, three groups of three different mutations were tested. For each group, only two combinations were tested. On the basis of each set of data (shown here), predict the results of the third experiment for each group.

HINT: This problem involves an understanding of why complementation occurs during simultaneous infection of a bacterial cell by two bacteriophage strains, each with a different mutation within the r11 locus. The key to its solution is to be aware that if each mutation alters a different genetic product, then each strain will provide the product that the other is missing, thus leading to complementation.