
This site is great for info on colour genetics and also includes a page on basic genetic terms.
http://doggenetics.co.ukFor health conditions if there is a genetic test for them the labs running the tests will have some info on them also a google scholar search can bring up research into it. Breed clubs may also have information for conditions in their breed.
Just rember when it comes to breeding and percentages the chance pecents are for each puppy So for example sex has a 50/50 chance this doesn't mean that 50% of a litter will be boys but that each puppy has a 50% chance to be a boy. I was told its ment to average out over a 100 litters but I always found it easier to just work it by each pup.