Yep.
Spider is dominant so you can't tell a het from a homozygous spider. This means that a spider could only carry one copy of spider and it would appear exactly the same as a homozygous spider.
SO.. if you breed a spider to an albino and your spider is a het, you will get roughly half of the babies that are het spider (which do look spider since it's dominant) and all of them are het albino. SO.. breed any of them that is a spider spider back to an albino, and you will get half that are albino and half of those albinos could also be spiders. I'm not sure of the odds that any given egg has both mutations (too much math for this time haha) but there is the chance.
Now.. if your original spider is a homozygous spider (this is only possible if BOTH of it's parents are spider.. and it's still not for sure) then ALL of the babies that this snake produces are spider. If it's bred to albino, all those babies are HET spider (remember still looks spider)
I really hope that makes sense.
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