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..
Ethnicity: *Luo Kenyan (father) *English, as well as Scottish, Irish, German, Welsh, Swiss-German, French, possibly remote African (mother). Barack Obama is the 44th President of the United States, having served as President since 2009.President Obama was born in Honolulu, Hawaii.He is a Democrat.President Obama is married to lawyer and writer Michelle Obama.resident Obamaâs father, Barack Hussein Obama, was Kenyan, of the Luo tribe.