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.
Genotype is what is there, though this would be in terms of genes not whole chromosomes. And phenotype is what is expressed. Also the eye color example is a good one though don't forget that this is determined by more than just two alleles of one gene, so it's a little simplistic but still a useful example. Genotype not being the same as Phenotype can get a little sticky once you get into codominance or genetic masking. More simply put, take the example of a heterozygote. The subject would have a dominant allele and a recessive one for a gene.