In crook-necked squash, neck length is controlled by one gene where long neck is dominant over short neck. However, an intermediate phenotype, thick neck is a result of the heterozygous genotype. A. A long-necked and a short-necked plant are mated with each other. What is the resulting phenotype in the offspring?
B. If the offspring are mated with each other, what phenotypes (and in what ratios) will result?

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.