looks like everyone in here is doing a great job at answering your questions. all i can offer is a couple links that will help lay it out for ya. the first one will answer just about all of your genetic questions: http://www.vmsherp.com/LearningCenter.htm
and if you are trying to figure out your odds of what you will get the world of ball pythons has a great genetic wizard that you can pick what morph to use as the male and female and it will give you the percents of what you will get from that breeding along with pics.
http://www.worldofballpythons.com/wizard/
good luck and happy herping