In the plant Lotus corniculatus, cyanogenic glycoside protects againstinsect pests and even grazing by cattle. The presence of this glycoside inan individual plant is due to a simple dominant allele. A population of L.corniculatus consists of 77 plants that possess cyanogenic glycoside and56 that lack the compound. What is the frequency of the dominant allele responsible for the presence of cyanogenic glycoside in this population?

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