Eight mutant bacteriophage streins cannot lyse a certain type of bacteris that can be lysed by wild-type bacteriophages. The mutant strains were allowed to infect the bacteris in a complementation test. Aindicates that lysis occurred with coinfection. A -indicates thet lysis did not occur A cistron is defined by no complementation in the How many genes are mutated in this experiment? (Use a number not a word in the space; Which of the following strains below are defective in the same gene as strain 3? Answer yes if the strain is defective or no if it is not Strainl Defective configuration 3 N/A