XYY syndrome is a chromosomal anomaly characterized by the presence of one X-chromosome and two Y-chromosomes. Some medical geneticists question whether the term "syndrome" is appropriate for this sex-linked trisomy, because afflicted males are physically normalâ€”though they tend to be above average in heightâ€”and the vast majority of those affected do not know that they possess the extra chromosome. About 1 in 1,000 boys are born with this condition. How does the chromosomal disorder develop?
Back in the day
Chamberlain served as prime minister of the UK from 1937 to 1940. His political legacy is defined by his controversial policy of "appeasement" toward Hitler, which culminated in the Munich Pact in 1938. When Germany invaded Czechoslovakia in 1939, he pledged military support to Poland and led Britain to war. He was forced to resign in 1940, after the British debacle in Norway. Some recent scholarship suggests that Chamberlain's appeasement policy was developed to help Britain do what?
Born on a day like today
Thorpe was one of the most versatile athletes in modern sports. He won Olympic gold medals in the pentathlon and decathlon, starred in college and professional football, and played basketball and Major League baseball. He lost his Olympic titles, however, when it was discovered that he had played minor league baseball prior to competing, thus violating the amateur status rules. His medals were later restored to him. Legend has it that Thorpe began his athletic career in what casual way?