Thanks for that info, I will ask her that. Assuming the father does have good lines but the mother doesn't, what are the chances you can get a good pup and what percentage comes from mom/dad or is a genetic crapshoot ?
Biologically speaking, each parent will contribute 50% of the genetic material that determines what the puppy is like structurally and temperamentally.
Unfortunately, heredity and genetics aren't quite as black and white as they may seem. Some genes are dominant to others, some are recessive and only make a change in the dog when they receive two copies of that same recessive gene. Some things, like DCM and cardio problems, can have MANY genes that contribute to how likely (or unlikely) a dog is to develop the disease. More than one gene controls coat color. Two black dogs can have puppies that are all black, black and red, black/red/fawn/blue, OR even albino (if they are z-factored dogs that carry the albino mutation). Genes can be tricky buggers since many of them are recessive and are hidden by another, more dominant gene.
With that said, it is a bit
of a genetic crapshoot. The sire will not contribute more or less than the dam of the litter, but no one knows which genes will be expressed in the puppy. That is why it is SO important to not look at ONLY the parents of the puppy but the generations of dogs behind the parents as well. It is not uncommon at all for a trait to skip a generation and rear its head again down the line. Good breeders typically will not breed to other dogs unless multiple generations behind that dog have proven themselves time and time again. That way, even if some traits to pop back up, or if the best aspects of the sire and dam do NOT appear in the puppies, the odds are still in favor of the breeding producing quality puppies of sound temperaments.
Here's a personal anecdote for ya... my girl, Liberty, always plays with her toys by lying flat on her back with her legs up in the air. She will hold her toy between her front paws and chomp on it, toss it around, etc. Apparently, Liberty's grandma used to do that ALL the time, but her sire hasn't really done it at all in his 10 years of life. It's just further proof to me that bits of their personalities ARE passed on genetically, and they absolutely can skip generations.
You asked why dreamscape would breed an average looking male to a less than average female. Simply put, they only care about profit. They don't really care about the quality of the puppies they produce. If they have a high demand for puppies from that male dog, they'll breed him to whichever female is in heat with complete disregard for the outcome. Don't expect them to refund you if your dog becomes ill or dies at a young age. I'll betcha they'd be happy to sell you a replacement dog though!
It's sad, really.