hypo genes

[nuno]

I have been reading some books and wanted to ask if anyone could tell me if you take a Columbian red tail and a Hogg island Boa and breed is that how you get a Hypo or is it simply a Hybrid ? Just wanted to know how some people get this hypo gene bred into thier collection, also how can you tell if the species has this gene?

Please understand that I haven't found any books yet on the different type of genes and what the definitions are. I am not trying to breed but want to become somewhat knowledeable on the different types of genes and phases.

If anyone knows of a website or has any info on my question please help.

Thanks, Nuno