Alison and Cosmo the bull calf

A bull calf that will sire 75% boys

by Josephine Frances Trott
July 31, 2020

Dr VanEenennaam's lab has used CRISPR editing of bovine embryos to produce a live gene knock-in bull calf. The calf, Cosmo, has been featured in Wired, the Daily Democrat, UC Davis News, Newswise, Interesting Engineering, SciTech Daily, Feedstuffs, Technology Times Pakistan, National Observer, Ag Daily, TechToday 19, The Counter, Capital Press and Grist.

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