E. W. Lindstrom crossed two corn plants with green seedlings and obtained the following progeny: 3583 green seedlings, 853 virescent-white seedlings, and 260 yellow seedlings (E. W. Lindstrom, 1921, Genetics 6:91–110).
a. Give the genotypes for the green, virescent-white, and yellow progeny.
b. Explain how color is determined in these seedlings.
c. Is there epistasis among the genes that determine color in the corn seedlings? If so, which gene is epistatic and which is hypostatic?