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Three dominant traits of corn seedlings, tunicate seed (T-), glossy appearance (G-), and liguled stem (L-), are studied along with their recessive counterparts, nontunicate (tt), nonglossy (gg), and liguleless (ll). 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:Phenotype NumberTunicate, glossy, liguled 102Tunicate, glossy, liguleless 106Tunicate, nonglossy, liguled 18Tunicate, nonglossy, liguleless 20Nontunicate, glossy, liguled 22Nontunicate, glossy, liguleless 23Nontunicate, nonglossy, liguled 99Nontunicate, nonglossy, liguleless 110500If evidence of linkage is present, calculate the recombination frequency or frequencies from the data presented.
