Biotechnologists have developed genetically modified rice that is fortified with beta-carotene -- which the body converts into vitamin A -- and additional iron, and they are working on other kinds of nutritionally improved crops.
Biotechnologists have developed genetically modified rice that is fortified with beta-carotene -- which the body converts into vitamin A -- and additional iron, and they are working on other kinds of nutritionally improved crops.
生物技术专家已经培育出了含有β—胡萝卜素(身体可将之转化为维生素A)和更多铁元素的转基因水稻，目前正在研究培育其他一些增进营养成分的农作物。