Examine the trait distribution of Specific Leaf Area (The ratio of leaf area to dry mass, SLA), below. The dotted normal distribution represents the natural pattern of SLA observed in nature. The histogram below the dotted curve represents the distribution of phenotypes when the plant is grown in a single common environment. The numbers above the bars represent the observed phenotype ratio. a a) How many polygenes encode for this trait? b) Assuming the minimum observed phenotype in a common garden was 8sqm/kg and the maximum observed phenotype was 20 sqm/kg, what is the contribution of each allele in this polygene?

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A:

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Dissection

Dissection is the process of cutting up the tissue of a dead or live animal or plant, to do anatomical studies and surgical treatments. The purpose of dissection is to learn more about the overall structure of organs and organ systems and thereby understand the physiology of the organism.