Rice is the primary nutrient source for about one-third of humanity-approximately 2 billion people worldwide. One major disease of this crop, called rice blight, is caused by a bacterium Xanthomonas oryzae . This disease causes the rice plant to turn yellow and wilt and can affect up to 50 percent of the crop. Wild forms of rice have a natural resistance to the Xanthomonas bacterium, but these wild forms are not usable as crop plants. Scientists have developed a blight-resistant strain, using genetic engineering. Strains of blight-resistant rice have been grown successfully in several countries. Assume some types of wild rice produce seeds of two different colors-brown and white. If you cross two plants and end up with three seed colors-brown, tan, and white, you would correctly assume that this trait __________.

Question

Quizplus · Accepted Answer

The presence of a third, intermediate color (tan) in the offspring suggests incomplete dominance, where neither allele is completely dominant over the other, resulting in a phenotype that is a blend of the two parent phenotypes.

Rice Is the Primary Nutrient Source for About One-Third of Humanity-Approximately