Answer: The United States Tax Court (in case citations, T.C.) is a federal trial court of record established by Congress under Article I of the U.S. Constitution, section 8 of which provides (in part) that the Congress has the power to "constitute Tribunals inferior to the supreme Court".[1] The Tax Court specializes in adjudicating disputes over federal income tax, generally prior to the time at which formal tax assessments are made by the Internal Revenue Service
But mutation combined with one of the other mechanisms of evolution genetic drift natural selection nonrandom mating and gene flow can result in meaningful changes in allele frequencies in a population
