QUES: Barbershop music is one of several uniquely American art forms. The earliest reports of this style of a cappella music involved African Americans. The earliest documented quartets all began in barbershops. In 1938, the first formal men's barbershop organization was formed, known as the Society for the Preservation and Encouragement of Barber Shop Quartet Singing in America (S.P.E.B.S.Q.S.A), and in 2004 rebranded itself and officially changed its public name to the Barbershop Harmony Society (BHS). Today the BHS has over 22,000 members in approximately 800 chapters across the United States, and the barbershop style has spread around the world with organizations in many other countries. The Barbershop Harmony Society provides a highly organized competition structure for a cappella quartets and choruses singing in the barbershop style.

What did the barbershop group change its name to officially in 1938?
What is the answer?
ANS: unanswerable
QUES: The proportion of repetitive DNA is calculated by using length of repetitive DNA divide by genome size. There are two categories of repetitive DNA in genome: tandem repeats and interspersed repeats.

What do you use to calculate genome size?
What is the answer?
ANS: unanswerable
QUES: In 2002, Spielberg was one of eight flagbearers who carried the Olympic Flag into Rice-Eccles Stadium at the Opening Ceremonies of the 2002 Winter Olympic Games in Salt Lake City. In 2006, Premiere listed him as the most powerful and influential figure in the motion picture industry. Time listed him as one of the 100 Most Important People of the Century. At the end of the 20th century, Life named him the most influential person of his generation. In 2009, Boston University presented him an honorary Doctor of Humane Letters degree.

How did Time Magazine recognize Spielberg?
What is the answer?
ANS:
one of the 100 Most Important People of the Century