A SNP is a variation of a single nucleotide between individuals. These polymorphisms can therefore be used to discern small differences both within a population and among different populations.
President of the United States. The President of the United States is the head of state of the U.S., the chief executive of the federal government, and Commander-in-Chief of the armed forces. The United States was the first nation to create the office of President as the head of state in a modern republic.
Trump, Donald. Biography. American businessman, television personality, author, and politician who is the President-elect of the United States, scheduled to take office as the 45th president under the 20th amendment on 20 January 2017.