after you take clones from you seed plant you want to get the clone to root and veg and by that time you should have your plant from seed in 12/12 and you will than know weather the clones you took are indeed female or male. your plant from seed should tell you male/female than you know your clones from same plant are male/female.. u dig? take a clone or two once it grows a few side shoots or right before flower take a few.