Humans have been engaging in “genetic modification” through selection and hybridization for millennia. Breeders routinely use radiation or chemical mutagens on seeds to scramble a plant’s DNA and generate new traits.
几百万年以来，人类一直在通过选育和杂交从事“转基因”。育种者一直在使用辐射和化学诱变剂处理种子，干扰作物的DNA，制造新的特征。