Hello friends -

Total newbie, so please excuse how silly this question is.

I've got an image I'd love to manipulate.

http://commons.wikimedia.org/wiki/File:Dna-SNP.svg

I've managed to crop it down to one gene. (Hooray). But I'd love to also remove the black arrow and dotted hemisphere that remains in my clipped image; i.e, just leave the gene. I think there is probably a tool to select based on outline or whatever, then clip again(?), but I cannot figure it out.

Can anyone help?

Thanks.
brian