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 Post subject: Re: the cats
PostPosted: Wed Jul 11, 2018 1:40 pm 
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buck private
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C_S wrote:
albino
Don't think so, haven't been close enough to be sure but from a distance it looks like a normal white kitten.

I'll ask Ning to check.

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 Post subject: Re: the cats
PostPosted: Wed Jul 11, 2018 1:56 pm 
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I would guess it is a male cat and it has a recessive allele that inhibits expression of the genes that shape color? Coat color in domesticated cats is largely influenced by loci on the X-chromosome. Thus, the vast majority of calico cats are female.

https://en.wikipedia.org/wiki/Calico_cat

Here this page might clarify for you: http://messybeast.com/whitecat.htm

ADDIT: Ah, I was wrong! As usual, genetics is unpredictable!
Quote:
In some animals, the blue-eyed white trait is sex-linked (carried on the X chromosome) and is found in males more often than in females. In cats, the gene for white is carried on an autosome (a chromosome other than the X or Y sex chromosomes) and the trait occurs equally in male and female cats. Blue-eyed white is not sex-linked in cats.


So the "non-albino" white cats have a gene which "masks" expression of the other genes which contribute to black/red coloration.

Quote:
Dominant white (more properly "epistatic white" since it occurs on a different gene to the black-based or red-based colours) denoted by the gene symbol WD (previously "W"), is the colour associated with deafness in cats. Dominant white masks all other colours and purebred dominant white cats may have blue, orange or odd eyes (randombred dominant white cats have a wider palette of colours). Those with blue eyes have a high chance of deafness. Those with one blue eye have a high chance of deafness on the blue-eyed side. Those with orange eyes are far less likely to be deaf. Some dominant white kittens are born with smudges of coloured fur on top of the head where the colour is incompletely masked, this smudge of colour usually disappears by adulthood, but kittens with colour smudges are more likely to have normal hearing. These cats are not albinos; genetically they can be any colour, but the white is dominant to those other colours (albinism is an absence of other colours).

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 Post subject: Re: the cats
PostPosted: Wed Jul 11, 2018 8:41 pm 
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buck private
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Anthropoid wrote:
{Snip}
I assume I'll never know whether s/he is albino without a university degree and even then it's only maybe.

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