I got a random strain and was wondering if I get another random one, is there a chance I might get the same strain again?

Iirc it tries to avoid giving you any you've already progressed to 100%

It can absolutely give you the same strain again. This just happened to me. Just be prepared to pay the 1 mil to remove it and reroll for a new one. c:

Thank you!

i guess i don't know for sure if there's any weighted probability but i've always gotten the sense that it's intended to be entirely random and you are fully at risk of getting the same strain multiple times in a row (which has happened to me). that's the trade-off for the convenience of the option.