Hello,
Im new to this forum, and I am hoping to get some information. We have a 2 yr old purebred Golden Retriever and had gotten a purebred golden retriever pup awhile ago, she is almost 17 weeks. We had gotten the puppie for the purpose to breed our 2 yr old with the pup in about 2 yrs (so then she is fully grown etc). We got them from different breeders but I guess these two breeders sometimes breed their dogs with one another Earlier in the years.
Where I need help is here..we have their blood lines. It seems they have the same Grandmother.

And if birth defects would occur from breeding them, ofcourse we dont want to do that. Would having the same grandmother cause birth defects in the puppies? it would really bring us down if its yes but we need to know before letting them breed. So some help would be greatly appreciated! Opinions please.
Thank you for your time!
P.s. when we purchased the pup the breeder said it should be perfectly fine to breed them (we told her our 2 yrs olds mothers name and she made a chart etc and said there should be no problems, but..i just need more opinions on this..do to the fact they have the same grandmother)