Cats Paws
- Thread starter alexb123
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Many cats gave many different markings, as far as white paws are concerned it may just be that it is a more common genetic trait in your area.
Did you know that tortoiseshell cats are always female?
Did you know that tortoiseshell cats are always female?
tablariddim said:
I didn't know that, why is it the case that they are all female?
The Paws could be a local genetic trait but I have two cats both with diff parents but white feet. And next doors cat also has the same white feet so its very common, I thought it might be selected for. However one of mine has white above its top lip like a hitler moustache and so does next doors. So it could be a local Genetic trait as I can't see that evolution would select for Hitler facial hair lookalikes.
M
Mr Anonymous
Guest
Used to own two, both with pink pads, mother and daughter. Rest of the litter were the same. What you're describing indeed sounds more local gene-pool rather than evolution.... So far, at any rate... 
My understanding is that trait is carried in the x chomosome of the xy pair and includes a lethal genetic deficiency. Since the coloring aspect is dominant, it is possible for a female to be tortoise shell (aka calico or tricolor), provided the other sex chromosome is different. Male and tortoise shell is always lethal.alexb123 said:
First, white paws are almost always due to a temperature difference in the extremities. The genes for colour have a temperature dependent step, and are inhibited by the few degree difference in temperature at the paws.
Calico cats are always female not because it is lethal in males, but because a part of colour is X-linked, and the mosaic model of females comes into effect. During development, one of the X chromosomes in each cell is inactivated at random so the genes on the X chromosome aren't over-expressed. If one X has colour, and one doesn't, you will end up with a patchy cat.
Calico cats are always female not because it is lethal in males, but because a part of colour is X-linked, and the mosaic model of females comes into effect. During development, one of the X chromosomes in each cell is inactivated at random so the genes on the X chromosome aren't over-expressed. If one X has colour, and one doesn't, you will end up with a patchy cat.