A population in which there are several mutant alleles for a specific gene. A situation where different alleles of a gene cause different severity of disease. A situation where people with the same genotype might have different phenotypes. A situation where people with the same phenotype have different genotypes.
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Courts of Appeals Congress created the Courts of Appeals in 1891 to help lessen the work load of the Supreme Court. The Courts of Appeals decide appeals from United States district courts and review decisions of federal administrative agencies. There are 13 United States Courts of Appeals.