Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
I have a lovely pure-bred siamese. Most well-behaved cat I've ever had. When her time comes, I'll definitely get another. They're known for their good temperament.

And volume! My mother had a Tonkinese (Siamese/Burmese mix), and that little thing had the biggest voice you ever heard. Lived to be 22--we kept anticipating her "last Christmas," she ended up having about eight of them--and was the queen bee to the end. My sister had a Russian Blue, incredibly loving cat, but terribly jealous. Used to pee on me while I slept to mark his territory (me), so the other cats (sis had about a dozen) wouldn't claim possession of me.

I'm down to two myself, and I swear one's retarded, but the sweetest little thing you could imagine. Deaf as a post any more, and about as bright. The other's a DSH that thinks she's a Siamese with the noise she makes, and insists on crawling under the covers with me.

Face it. They're all weird.
 
can you really tell by the colour? (I've never heard that before)

Cat coat colour genetics is fairly complicated, but as far as I know the only gene that is definitely sex-linked is the O gene, which codes for orange/red coat, is carried on the X chromosome and is responsible for only female cats being tortoiseshell (apart from very occasional male tortoiseshells that no-one can really explain apart from as chromosomal abnormalities :) ).
 
Yes, the light brown fur color is nearly always female. So is calico. I have no idea why, but it's true.

I think it's true for calicos (which are black, white, and orange), but not for orange/white cats like this one. The calicos are almost always female because the coloring is a simultaneous expression of two genes on the X sex chromosome. Male cats only have one copy of the X chromosome so they can't have two different alleles to express, so they can't have this coloring pattern. (EDIT: but you could end up with trisomy, like XXY, and that could produce both male expression and calico).

The way I understand it, there's another gene that causes spotting with white fur, but the gene on the sex chromosome codes for either black or orange fur, and so it's the fact that the calicos have black and orange fur, not that they have white fur, that's the thing that's driven by the sex chromosome. So black/white and orange/white mixes happen regularly in males, but black/orange ones do not.

Anyways, I've known several male orange/white cats.
 
I think it's true for calicos (which are black, white, and orange), but not for orange/white cats like this one. The calicos are almost always female because the coloring is a simultaneous expression of two genes on the X sex chromosome. Male cats only have one copy of the X chromosome so they can't have two different alleles to express, so they can't have this coloring pattern. (EDIT: but you could end up with trisomy, like XXY, and that could produce both male expression and calico).

The way I understand it, there's another gene that causes spotting with white fur, but the gene on the sex chromosome codes for either black or orange fur, and so it's the fact that the calicos have black and orange fur, not that they have white fur, that's the thing that's driven by the sex chromosome. So black/white and orange/white mixes happen regularly in males, but black/orange ones do not.

Anyways, I've known several male orange/white cats.

It's true for calico and tortoise shell coloration, at least. I don't know about genetic predispositions for the other colors, but most of the light tan and white cats I've known have been female. Most of the orange cats have been male.
 
since we're posting pictures of our cats, here's my zep. any idea what mix he is? :p
 

Attachments

  • IMG_0257.jpg
    IMG_0257.jpg
    102.7 KB · Views: 77
  • IMG_0345.jpg
    IMG_0345.jpg
    97.6 KB · Views: 85
It's true for calico and tortoise shell coloration, at least. I don't know about genetic predispositions for the other colors, but most of the light tan and white cats I've known have been female. Most of the orange cats have been male.

Oh, sorry, I see the distinction you're making now... Hmmm, I'm not sure. Are those light tan cats considered tortoise-shell?

onelasercat.jpg
 
she's a very cute cat. My girlfriend and I got a couple cats from the shelter and she reminds me of the boy we got. I'll have to get some pictures someday.
 
Yup, DLH.

Cats have WAY more personality than dogs. It only seems the other way because dogs are basically sluts, emotionally speaking (and I love dogs). Cats are more independent, but if they decide to attach to you, it's an incredibly strong attachment. I've had a couple dozen cats over my lifetime, and every one was totally different, and all had very strong personalities. Across the same number of dogs, they were all different, too, but in a narrower range.

Dogs come when called, cats come when interested. Dogs want to please you, cats want to study you. Most guys seem to dislike cats because the cat is stronger-willed than they are. Smarter in many cases, from what I've seen.

I don't know, my mom's dog has a personality that really shows, more so than most other dogs I've seen. Oh, and he's so attached to her that if she leaves for more than a day he won't eat and only sleeps somewhere that he can smell her scent. His personality is the cutest though. He's a big chicken. He is a tiny dog, about 15 lbs., and runs full of fear from dogs half his size. My brother's 4 month old Maltese chases my mom's 3 year old mutt. Poor guy. He's fun. :p
 
Oh, sorry, I see the distinction you're making now... Hmmm, I'm not sure. Are those light tan cats considered tortoise-shell?

I don't think so, but whenever I see a light tan cat (especially if it's patched with pure white) it seems to be female. Totally unscientific. ;)

Tortoise shell is that reddish-brown color. We have two tabbies who were litter-mates. Their markings are almost identical except the female has dabs of tortoise shell and white in her fur.

After a bit of research (beats working for a living) I discover that my assumption about orange cats was essentially correct. Orange fur is a recessive trait in female cats and a dominant trait in males. I think that's the way it was explained. It's genetic, anyway.
 
It's true for calico and tortoise shell coloration, at least. I don't know about genetic predispositions for the other colors, but most of the light tan and white cats I've known have been female. Most of the orange cats have been male.

its also true that most white cats have two different color eyes and are deaf
 
2292162199_64f9aa98c6_o.jpg2292947464_ca26526455_o.jpg
Light Colored Calico

Calicos are 99/100 female because the genetic "problem" stems from the dominant and recessive genes for the basic colors of kitties which reside on the X chromosome. And you cant really have both if you dont have XX.
 
looks like a mutt to me,
definitely not a purebred.

Mutts are good, purebreds tend to be crazy and or stupid, but pretty.

I too have to refute this... :p

I have a pure bred persian and she is the friendliest, non crazy, most intelligent cat I have ever come across. Check her out playing FIFA08 against my brother and giving a cheeky smile as she whups his ass!

:D
 

Attachments

  • IMG_0025.JPG
    IMG_0025.JPG
    67.7 KB · Views: 100
  • IMG_0029.JPG
    IMG_0029.JPG
    632.5 KB · Views: 75
  • IMG_0033.JPG
    IMG_0033.JPG
    691.2 KB · Views: 103
  • IMG_0034.JPG
    IMG_0034.JPG
    703.1 KB · Views: 75
Alright already! ;)

Yes, the light brown fur color is nearly always female. So is calico. I have no idea why, but it's true.

It has to do with Barr bodies and the expression of the X's. The coloration depends on which X is active in the given cell. This can't really happen with a typical male (non-Klinefelter's, XXY) because there is only one X that is active in each cell, and are therefore no Barr bodies.
 
Another cat lover here. I also have a purebred siamese and she is amazing. I'm pretty biased though.

2205841695_8aaf9f715c_b.jpg


Edited to add a cute story: Every morning when I wake up, Lily is right behind me on the bed with her head on the pillow and her body on the bed. It is so adorable!
 
Another cat lover here. I also have a purebred siamese and she is amazing. I'm pretty biased though.

2205841695_8aaf9f715c_b.jpg


Edited to add a cute story: Every morning when I wake up, Lily is right behind me on the bed with her head on the pillow and her body on the bed. It is so adorable!

Another siamese lover! Great cats- I love my little girl to death.
 
I show cats, so get ready for the dorky-ness :)

Yes, as others have said, that cat is just a Domestic Long Hair. Typically, DLH cats are referred to by their color. Your girlfriends is a Red Bi-color Tabby. The coloring that most people call orange is in fact the red part, the bi-color part comes from the fact that it is approximately half white.

@ cybergypsie, did you know your cats are solid blue? :p :D

@ mkrishnan, the cat in that picture is a blue tabby.

@ it5five, I abolutely love the color pattern of your cat because it is called "van."

*reads post and shakes head*

Yup, I am a dork...

EDIT: @ Sdashiki, you cat is actually what is called a "torbie" which is short for "tabby patterned tortoiseshell." The tell all are the tabby stripes in the red patches. To be a real calico it would need to have more white. ;)
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.