转基因作物中含有从不相关的物种转入的外源基因,例如,美国孟山都公司的转基因大豆含有矮牵牛的抗除草剂基因。这些外源基因有可能通过花粉传授等途径扩散到其他物种,生物学家将这种过程称为“基因漂流”。环保主义者则喜欢使用“基因污染”的概念,外源基因扩散到其他物种,造成了自然界基因库的混杂或污染。 Genetically modified crops contain foreign genes that are introduced from unrelated species, for example, genetically modified soybeans from Monsanto in the United States contain petunia herbicide-resistant genes. These exogenous genes may spread to other species through pollinators and other means, and biologists refer to this process as “gene drifting.” Environmentalists like to use the concept of “genetic contamination,” which spread to other species, creating promiscuous or contaminated natural pools.