In 1974 Rudolf Jaenisch created a transgenic mouse by introducing foreign DNA into its embryo, making it the world's first transgenic animal.
Dǎɣ 1974, Rudolf J igan eɣalam transgénique dǎɣ iga ADN nanaftaɣ dǎɣ aranes, awa igan awudar transgénique wa dazaran dǎɣ aduniyat.