Scientists from the L.K. Ernst. In 2020, they managed to breed the first cloned calf. But this is only the first step, the first stage of the experiment. It is also necessary to grow it and test the milk for allergenicity. It is now known that the milk of this cloned cow is still capable of causing allergies. Therefore, the researchers plan to move on to editing the individual’s genome. For this, a molecular tool will be used that allows you to precisely cut the desired gene – CRISPR / Cas9.