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The color in a tortoiseshell cat can only be produced by two x chromosomes. this would mean that these types of cats are always?
Wiki User
∙ 11y ago
Either female, or triploid. A normal diploid mammal will have two X chromosomes if it is female, or an X and a Y if it is male. The genetic variant known as triploidy can result in animals with two X and one Y chromosome, which express male characteristics, or both male and female characteristics.
Wiki User
∙ 11y ago
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What is the color of a cats skin?
Generally, the skin color of the domestic cat is similar to the fur color at that spot. If you shave a tortoiseshell cat, she will still be tortoiseshell colored.
What is the skin color of a domestic cat?
Generally, the skin color of the domestic cat is similar to the fur color at that spot. If you shave a tortoiseshell cat, she will still be tortoiseshell colored.
Are tortoiseshell cats female or male?
A tortoiseshell cat is a coat color where the cat is a molted brown cat with black, reddish, or orange patches. They can also have white paws. Tortoiseshell cats have unique genetics. The vast majority of tortoiseshell cats are female, because two X chromosomes are required to produce black, gold and orange coloring. Male cats only have one X and one Y chromosome, so technically it's genetically almost impossible for a male to inherit the tortoiseshell coloring. A male tortoiseshell has an extra X chromosome, making it an XXY. According to a study by the College of Veterinary Medicine at the University of Missouri, only 1 in 3000 tortoiseshell cats is male.
Which gender is more common in calico cats?
This color is almost always female. This red and black color in cats in on the X chromosomes. Since females have two X's, they can have red and black in their coats. The white in calico is a marking over the other two colors. The best way to say this is " tortoiseshell and white". Males (XY) can be calico only if they have a genetic abnormality such as XXY.
Are tortoiseshell cats friendly?
I have a tortoiseshell cat, and she is fairly friendly... well, she doesn't scratch me or bite me unless she is really freaked out, although she also tends not to like my younger sibling and her friends, but they're all really loud. I, however, can't speak for everyone, I'm sure there are some tortoiseshell cats that aren't friendly at all. 'Tortoiseshell' is just the color of their fur, I think there can be friendly and not so friendly tortoiseshell cats, but I know mine isn't mean.
Is there such thing as a tortishell cat?
Narmoush says:A definition:Tortie Ultra (Contemporary) Persian Cat called "Princess". So this means they actually Persian but with a different type of fur print on their back 'the shell of a TORTOISE'Tortoiseshells come in many colors: Black tortoiseshells.Chocolate tortoiseshell.Blue [gray] tortoiseshell.Seal tortoiseshell.White tortoiseshell.Now to get to my point...Are they rare?Yes,A lot of us know that tortoiseshell cats are always female, with rare exceptions.Why is this?Females have two X chromosomes. If a particular female cat is destined to be a tortie she will have received from her parents an X (Eumelanin) chromosome from one parent and an X chromosome (phaeomelanin) from the other. Each cell can have one X Chromosome activated. A factor in the creation of the tortoiseshell coat is controlled by X Chromosome Inactivation. This process only takes place where there are two X Chromosomes; hence only females are tortoiseshell cats. As the cells divide and multiply patches of the two different types of pigment are created.About 1 in 3,000 tortoiseshell cats are male
What breed is this cat you have her colour is totoiseshell but you dont know her breed?
Tortoiseshell is a natural-occuring cat color, so it would be almost impossible to guess her breed, as many breeds can be tortoiseshell.
Where are tortoiseshell cats from?
Tortoiseshell describes a coat coloring found in cats. Cats of this color are mottled, with patches of red and black, chocolate, or cinnamon. They are sometimes called tortiesfor short. The term "tortoiseshell" (also called calimancoor clouded tiger in North America) is typically reserved for cats with brindled coats that have relatively few or no white markings. Those that are largely white with red and black patches (rather than a brindled aspect) are described as tortoiseshell-and-white (in the United Kingdom) or calico (in the United States). Tortoiseshells and calicos are not specific breeds of cat. The tortoiseshell markings appear in many different breeds.[1] This pattern is especially preferred in the Japanese Bobtail breed. Both calico and tortoiseshell cats are almost always female
What country are tortoiseshell cats from?
Tortoiseshell is a specific coat pattern and color. Some breeds of cats may naturally have this, but it tends to show up in mixed breed or "barn" cats. They can be found in any country that has a feral population of cats.
How do you know when a male cat is sterile?
Something I learned in my Biology class today: The color alleles on cats are located on the X chromosomes in DNA. Calicos and tortoiseshell cats are usually female because they have an orange X chromosome and a black X chromosome. These two colors will be co-dominant, meaning that neither one or another will be prevalent on the cat's body. This is why calicos and tortoiseshell cats have random patterns of orange and black fur (the white fur, if any, is just a sort of background to the color). Since two X chromosomes in an animal means that it is female and a XY sex chromosome layout means that the animal is male, it is extremely rare for a male cat to have both the orange and the black X chromosomes required for the calico coat. For this to be possible, the male cat must have a XXY layout of chromosomes - the equivalent of the human Klinefelter's Syndrome. This syndrome almost always leads to the sterility of the animal that has it, although there have supposedly been cases where individuals with Klinefelter's have been fertile. And as to why Klinefelter's causes sterility, I don't have a clue.
What color is chromosomes?
dark purple
What color are chromosomes?
a deep purple
