I actually do have a hunch that the USSR's adoption of Lysenkoism and rejection of genetics was at least in part an overreaction to things like phrenology, racist biology, social darwinism etc being so common within western science back then. It probably seemed very obvious to reject science that, at the time, had a huge focus on determining which racial categories had the purest blood. Probably a lot easier to reject it when your country is full of the very people who had been deemed genetically inferior.

Does anyone know more about this or am I completely wrong