rigeons have long been the subject of genetic studies. Indeed, Charles Darwin bred pigeons in the hope of unraveling the principles of heredity but was unsuccessful. A series of genetic investigations in the early 1900s worked out the hereditary basis of color variation in these birds. W. R. Horlancher was interested in the genetic basis of kiteness, a color pattern that consists of a mixture of red and black stippling of the feathers. He carried out the following crosses to investigate the genetic relation of kiteness to black and red feather color (W. R. Horlancher. 1930. Genetics 15:312-346). Offspring 16 kitey, 5 black, 3 6 kitey, 7 black 18 red, 9 kitey, 6 bl. Cross kitey x kitey kitey x black red x kitey

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A: A dihybrid cross is a hybridization experiment in which two pairs of contrasting characters are…

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