Adult Obesity in the United States. Updated September 21, 2015: According to the most recent data, rates of obesity now exceed 35 percent in three states (Arkansas, West Virginia and Mississippi), 22 states have rates above 30 percent, 45 states are above 25 percent, and every state is above 20 percent.
PHENOTYPE AND GENOTYPE. Definitions: phenotype is the constellation of observable traits; genotype is the genetic endowment of the individual. Phenotype = genotype + development (in a given environment). To consider these in the context of evolutionary biology, we want to know how these two are related.
Therefore, the phenotype is a sum of the environmental and the genetic effects. Stated in a mathematical format: Phenotype = Genetic Factors + Environmental Factors. And one of the goals of quantitative genetics is to measure the contribution of genetic and environmental factors on a specific phenotype.As you might imagine,the field of quantiative genetics also studies other aspects of quantitative traits.henotype = Genetic Factors + Environmental Factors. And one of the goals of quantitative genetics is to measure the contribution of genetic and environmental factors on a specific phenotype.