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Phenotypes and Chi-Square lab was a genetics lab using corn and soybeans to explore Mendelian inheritance patterns, focusing on phenotypes, genotypes, and the relationship between them. The lab used Punnett squares to predict offspring genotypes and phenotypes and then used the chi-square test to statistically analyze the observed versus expected ratios. The experiment used heterozygous parent corn plants and soybean plants, meaning the corn carried both the dominant green allele (G) and the recessive white allele (g) and the soybeans carried both the dominant green allele (G) and the recessive yellow allele (g). Based on Mendelian genetics, a cross between two heterozygous parents (Gg x Gg) would result in offsprings that had a 3:1 phenotypic ratio if they have complete dominance and a 1:2:1 phenotypic ratio if they observed incomplete dominance. The corn had 69 green and 233 white colors observed in the leaves of the offspring while the soybeans had 44 green, 74 yellowish-green, and 34 yellow leaves observed in the offspring. This suggests that the corn followed complete dominance while the soybeans had an incomplete dominance. The Chi-Square test, a statistical method, was employed to tell whether any deviations from the anticipated ratio were due to chance or significant factors other than chance. The resulting Chi-Square value fell below the critical value of 3.84, signifying that the observed data did not deviate significantly from the expected ratio. This outcome lends support to the null hypothesis, which states that the inheritance pattern observed in the corn offspring follows Mendelian principles.