#dilute tortoiseshell cat

[coco-boco]

Hey, pay attention to me!

[staywildmoonrise]

Pampa 🐱🐈

[whatcoloristhatcat]

This is my grandma's cat, Peaches. She's 20 years old.

We call her Miss Peaches or sometimes the Dowager

ah, my lady. so sorry to hear about your fifth wealthy husband going missing under mysterious circumstances

she’s a dilute black (blue) tortoiseshell tabby (torbie) with moderate white spotting!

[saturncoyote]

ThunderClan's least inbred cat

edit: added some more details to the fur i forgot about woopsie 👍

[amber-tortoiseshell]

Hello! I used to volunteer at a shelter and this pretty gal was named toffee - I’d never seen a cat who was more orange than black! Any ideas about genetics or what would make a cat have extra orange?

Hello! As far as i know, the color distribution of a tortie is random, and while it's a rare sight, a cat with this much more orange than black is a completely normal tortie variant. It's just the luck of the X-inactivation.

[getvalentined]

Why are you a rabbit? Stop that.

[guess-i-do-art]

I’ve come to make an announcement… shadow the hedgehog’s a butch ass mother fucker I finally caved and made a fursona. With a heavy heart I admit that I am, in fact, somewhat of a furry. YIPPEE 🙌

My fursona’s name is Swan obvi. She’s a tortoiseshell cat-swan griffin! I chose griffin because I’ve always been obsessed with them. As a kid that’s all I would draw 😂

She’s super fun to draw in my opinion so definitely expect more drawings of her! 🫶

Bonus: goofy doodles I made of cats on my biology homework

[dixieandherbabies]

Dixie and her babies.

Our hearts are broken! 💔Sadie was put to sleep today at 3:30pm. Liver failure. She had been sick for the last year & was just too tired. We are devastated.

[coco-boco]

How big can Annie Mae’s eyes get?!

[paintedmage]

As promised, the first art decided by the poll! Atem and his gang of cats! + a bonus art of his and Kaiba's dog Duchess at the end!

Ginger kitten eating Atem's hair: Ginger, Atem's latest addition to the cat family.

White cat hanging off Atem's shoulder: Kiki, a deaf cat who loves climbing everything. Kaiba has a soft spot for her

Pale ginger and white tabby: Maple, the sweetest of them all.

Tortie: Luna, who is more attached to Kaiba than the other cats

Brown and cream tabby with missing hind leg: Cinnamon, the one Atem was the most worried about at first, but he soon realized that Cinnamon is almost unbothered by his missing leg.

Sphinx: Sage, named for her green eyes. Atem loves dressing her in silly sweaters and clothes for warmth.

Large white cat with silver flat face: Zahra, the first of the cat gang, adopted by Kaiba after the Ceremonial Duel. He's jealous his cat now loves Atem more.

Black cat attacking shoelace: Shadow, Kiki's littermate and the spiciest of all the cats.

Blind calico: Rosemary, Atem's special girl. She was the first cat Atem himself rescued.

Tuxedo Cat: Jinx. Shadow and Kiki's littermate and very silly. Only has two braincells most of the time.

And a bonus Duchess! Kaiba's rescue Welsh Corgi and spoiled to no end. She thinks quite highly of herself. Kaiba almost named her Honey for her fur.

[whatcoloristhatcat]

what color is my baby pls🙏

i believe a dilute black (blue) tortoiseshell with low white spotting cornish rex !

[will-do-anything-for-a-dollar]

warrior cat nation

how do we feel about tortie swiftpaw?

[birdgenetics]

This just in! What I learned today:

I was doing some reading on cat genetics and I learned female mammals undergo X chromosome inactivation! In each of their cells they randomly inactivate one X chromosome to prevent overexpression of the X chromosome. That's how you get the magnificent tortie cat. In some pigment cells the Orange chromosome is active and in the others the black is active.

So that made me wonder, do male birds (with the ZZ sex chromosome arrangement) do Z chromosome inactivation to prevent overexpression of the Z chromosome? Sexlinked colors do seem to work differently in birds.

And I discovered, NO! This really does explain a lot.

Take Sex-linked Dilution, for example.

Female geese have one Z allele so they have one copy of the dilution, therefore, they are a slightly lighter gray than wild type and have a little white.

Heterozygous male geese have a copy of the dilution and a copy of wild type. Since they have one dilution allele like the female geese, they are the color of the female geese.

But Homozygous males have a double expression. They have two copies of the dilution and they are mostly white with a little bit of light grey.

You see the same in faded pigeons. Hemizygous females and heterozygous males are the same color, Homozygous males are lighter.

In barred chickens the same thing, dark hemizygous females and heterozygous males, light homozygous males.

But before you get too comfortable there is a twist.

There is another goose gene that is so rare I forgot to show a photo of it in my last post where I said I showed all possible goose alleles. (Actually, I believe it might not actually be all that rare and might just be the "weird swan goose white" I mentioned.)

Aqua Discovered by Snyder's Waterfowl.

Hemizygous females and homozygous males are white. Heterozygous males have this blue spotted color.

A more common example would be ash red pigeons. Hemizygous females and homozygous males are ash red but heterozygous males are mostly ash red with a few blue/black flecks.

Why is it like this? Incomplete dominance, I guess wild type and white want to battle it out, I honestly don't know.

And of course recessive sexlinked genes like Chocolate or Dilute pigeons need the bird to be hemi or homozygous to express. It really makes me curious about what other genes are sexlinked in mammals and birds and how they looked.

[happy-go-locko]

Kitty Witch Commission 🧹🌸😺

[lifeamongthekelpies]

I love her so much, she’s so friendly and loving❤️

[dixieandherbabies]

Dixie and her babies.

Sadie bug wants all of the attention!