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