In corn, you find that there are two different genes (R and B) that both make purple pigment in the stalk of the plant. Thus, only when both alleles are mutated (rrbb) would the corn stalk be green instead of purple. When you cross two heterozygotes, you find a ratio of 15:1 of plants with purple stalks to green stalks. What type of genetic interaction is this?

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Dominant interaction


Complementary gene interaction


Duplicate gene interaction


Dominant suppression


asked May 5, 2013 in Genetics by GeneX ~Top Expert~ (7,933 points)

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Duplicate gene interaction
answered May 5, 2013 by GeneX ~Top Expert~ (7,933 points)

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