Check this book -
https://libgen.lc/ads.php?md5=3816FB871D4DF90AC879E582BAEE07AF
chapter 5 "Green Genes" as it goes into great detail about genetic engineering techniques, including origins of opposition, and including peanut allergies (screenshot). It was written by a recognized environmentalist Stewart Brand who condemned WWF, FoE and Greenpeace on their anti-scientific position, as many other environmentalists did.