High mitted bicolors and "true" bicolors should look identical. Few US breeders work with "true" bicolors, so she is most likely high mitted. If you know the patterns of her parents, then you may be able to tell. If she had two mitted parents, then she is high mitted. (She can have two bicolor parents and still be high mitted, but you have to know the genetics of the parents to understand the odds. For example, if both parents are high mitted bicolors, then she is a high mitted bicolor.)
Thank you for your explanation Jan. I didn't realise that " Few US breeders work with "true" bicolors" but I do know that both of my bi-colours are "true" so I had looked into what patterns I could get from various matings and had found that they could, and did, produce colourpoints
Yes, sadly (as to the latter), the gene was identified in the UK and is common there.
Update:
I found out Sadies mother's mother was ablue, and the breeder told me she could carry blue, so there is a possibility of blue. Correct??
If a parent is blue, then all kittens of that parent will be dilute (including blue) or will carry it. Such a parent will produce blue if the other parent is or carries blue. So, based on the breeder's information, Sadie WILL carry blue. (This is a common way to describe the genetics, but in fact it can be misleading and there is no blue gene. Blue is the dilute of seal and is created by the cat having two dilute genes. These are the SAME dilute genes that make chocolate into lilac and flame into cream, just as they make seal into blue.)
so, since her grandmother was blue, Sadie carries blue. So,what % of the kittens could be blue then?? I am trying to get this! LOL
Sorry, one cannot derive the dilute status from a grandparent - only a parent. I misread your post. Sadie's MOTHER must carry dilute, but the chances for Sadie carrying dilute from her mother are only 50% if her mother was Dense (seal). A dilute carrier bred to a dilute cat statistically will produce half dilute kittens.
I made a simple cross form wich explains it. Non dilute is dominant, and dilute is recessive.
If one cat is Bb and other is bb (full dilute) the chance if getting blue kittens are 50%.
If one cat is seal, and does not carry dilute BBxbb there wil only be seal kittens.
See attachment.
ok, so Sadie could still possibly carry dilute, but hidden?
In a dense color cat, any dilute gene will be hidden. It is recessive and is not expressed unless the cat has two copies. Heterozygous (one copy) recessives are always hidden.