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..
Joel Gilbert's ad in the New York Post. The New York Post has accepted a full-page ad declaring Barack Obamaâs real biological father is the late Communist Party activist Frank Marshall Davis, not the Kenyan Barack Hussein Obama. The ad will run in the Postâs New York City, national and international editions Tuesday and Sunday.