Question

To determine whether the mutations in the seven strains leading to the wingless phenotype are in the same gene, your lab sets up complementation tests. You obtain the following results (" " indicates that complementation was observed; "-" indicates that no complementation was observed).

Answer 1

Answer:

The complete question includes a chart which I'm including below:  

Which mutants are in the same complementation group as mutant strain 1?

of course:  ("+" indicates that complementation was observed)

,,,and the answer  regarding which mutants are in the same complementation group as mutan strain 1 are:  2,4, & 7.