Answer Happy

You are interested in the pathway that governs fire breathing in mouse-sized mini-dragons. The ability to breathe fire is the wild-type phenotype. You have chosen mini-dragons because they reproduce much more rapidly than large dragons, and they have many offspring per litter. You identify ten dragons that cannot breathe fire; we'll call their phenotype "the smoldering phenotype." Your crosses indicate that all ten of the smoldering dragons contain loss-of-function alleles relative to wild-type. You therefore carry out complementation analysis by crossing pairwise combinations of your mutant dragons and obtain the data in the table below. In this table F indicates that the mini- dragons are fire breathing and S indicates that they have the smoldering phenotype. Answer the following 2 questions based on this information. 2 1 F 12 2 3 4 5 6 7 3 4 5 6 7 F S F F 8 LL F F F F F F LL FF 1 A BIT F F LL LL F F IL 7SFF S LL F LL F 8 9 10 BFSFL FF F F SFF F LL F FS F F UFF F SF F F LL F LL F F 9 F How many genes did you identify that contribute to the fire breathing phenotype? LL IL