Sexing the plant - Male/Female?

Almost certainly...Male.If its a good strain cut it down to one branch and collect the few flowers just before they burst, dry them them split them open to reveal the pollen inside which can be carefully placed inside a seal up bag with a cue tip for late use pollenating females and creating your very own new hybrid strain. Exciting isn't it? Just be careful with the pollen it is crazy stuff so id recommend only doing that if outside or inside doing a seed run. Hope I helps. Sticky Buds!