MasterGwydion
Emperor Mongoose
Check the Robot book for the stuff on Clones. It has some genetic info for you all. page 98I see! Personally, not read all the rule variants and that rule appears missing in Mg 2e. Yes, that would link psionics to some sort of genetic basis. Therefore, surprised it was taken out, as that would be a crucial aspect of the mechanic. Just checked, it is not mentioned in the Mg Traveller Companion book either - totally relegated, yet relevant, IMO.