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The offspring produced between two given types of plants can be any of the three genotypes,...

The offspring produced between two given types of plants can be any of the three genotypes, denoted by A, B, and C. A theoretical model of gene inheritance suggests that the offspring of types A, B, and C should be in a 1:2:1 ratio (meaning 25% A, 50% B, and 25% C). For experimental verification, 100 plants are bred by crossing the two given types. Their genetic classifications are recorded in the table below. Do these contradict the genetic model? Use a 0.05 level of significance. The following were observed in this study: Genotype A = 18, Genotype B = 55, Genotype C = 27. Make a decision for the test

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