Purple Goose
New Member
I am just wondering I have a strain of indicas from health canada that they label as an F3 I understand that if I was to say buy a pack of 10 regular ghs lemon skunk for instance if I was to keep one male and cross it back I would get f1 and f2's but can someone explain how they differ is it a matter of uniformity in the strain or the variation of phenotype's I just dont really understand how it works.