Intrestingly if one plant pollinated another plant preferbally of different species you would probably be creating a new and intresting species and if female guarenteed feminised seeds. Of these seeds let only the strongest make it and you will more than likely get some dam fine bud, albeit a little bit different to each other i find that the genetics of marijuana are favourable and normally yield good strong bud from most seeds with most size and some other charecteristics down to the grow and grower. Dosen't hurt to make your own seeds now and again. Your plants don't sound particuarly like heraphrodite plants and i witness a few bannanas on a few plants now and again, sometimes more somtimes less and i grow with feminised but i attribute most male pollen sacs on female dominant plants to be down to stress in some parts of its life and especially in the flowering room not hermie plants or dna. I cant be sure for your situation though just the majority of times it seems like this. Seeds in the bud dosen't mean you won't get good bud so no reason to chop plants if you can get away with just pinchinh the pollen sacs off instead. We all smoked weed with bud seed in at some point of our lives, wasn't that bad for me.
The answer to the question:
so for the plant that has seeds in it the only way that it could pollinate any other plants is if it has pollen sacks/flowers right?
Is yes the only way the plant (or any other plant) could ever polinate any other plants is if it has pollen sacks/flowers. And when you say flowers i assume that you mean pollen is useless without the female part of the plant which is the flower and pollen would travel from the pollen sac on a female plant to both its female flowers and other plants female flowers and pollinate both producing seeds. Hope this helps.