"It is not uncommon for some strains to generate a few hermaphrodites in the final weeks of flowering. This is quite a familiar condition with sinsemilla crops as some plants, in a last ditch effort to continue their line via seeds, will generate a few male flowers to try to self-pollinate.
In most cases, the pollen produced is not viable, but as a precaution you should clip them away. Simply check your sinsemilla for small yellow banana shapes in the bud during the final weeks of flowering and clip them away."