Three dominant traits of corn seedlings, tunicain seed ( T ) , glossy appearance ( G ) , and liguled stem ( L ) , are studied along with their recessive counterparts, nontunicate (tf), nonglossy ( gg ) , and liguleless (II). A trihybrid plant with the three dominant traits is crossed to a nontunicate, nonglossy, liguleless plant. Kernels on ears of progeny plants are scored for the traits, with the following results: Using the gone symbols given above, choose the genotypes of F 2 plants. Sort these items into the proper categories..