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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Supreme Court. The Supreme Court is the highest court in the United States. Article III of the U.S. Constitution created the Supreme Court and authorized Congress to pass laws establishing a system of lower courts. In the federal court systemâs present form, 94 district level trial courts and 13 courts of appeals sit below the Supreme Court. Learn more about the Supreme Court. Courts of Appeals There are 13 appellate courts that sit below the U.S. Supreme Court, and they are called the U.S. Courts of Appeals. The 94 federal judicial districts are organized into 12 regional circuits, each of which has a court of appeals. The appellate courtâs task is to determine whether or not the law was applied correctly in the trial court. Appeals courts consist of three judges and do not use a jury. A court of appeals hears challenges to district court decisions from courts located within its circuit, as well as appeals from decisions of federal administrative agencies.