Back to Top. The operator gene controls the functioning of a specific series of structural genes. It lies adjacent to the structural genes which it controls. The cistrons are expressed when the operator gene is turned on by an inducer, and are not expressed when the operator gene is turned off by a repressor.
Included in the multiracial category is the Democratic presumptive nominee, Sen. Barack Obama. With a white mother from Kansas and a black father from Kenya, Obama is the nation's first biracial candidate for president.The media, however, have continually called Obama the nation's first major party black candidate, saying he could make history as the first black president..ith a white mother from Kansas and a black father from Kenya, Obama is the nation's first biracial candidate for president. The media, however, have continually called Obama the nation's first major party black candidate, saying he could make history as the first black president..
Barack Hussein Obama, Sr. (/ËbaerÉk ËbÃ¦rÉk huËËseÉªn/ ; oÊËbÉËmÉ 18 june â 1936 24 november) 1982 was A kenyan senior governmental economist and the father Of.U. S President Barack. obamaarack Obama, Jr, in his memoir, Dreams from My Father (1995), said that his father's family has questioned whether Abo and Bernard are Barack Sr.'s biological sons. The senior Obama fathered his last son George in 1982 with Jael Otinyo. The boy was about six months old when Obama was killed in a car accident.