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About: The Carrd

"Tanetics" is a play on 'Tan' and 'Genetics'. I am Tan and I like to research animal colour genetics as a hobby.In this Carrd, i write down everything I have learned about animal genetics. It helps me word my information more clearly when writing it down as if I'm informing others, hence this format. You can read here about cats and in the future horses, rodents, dogs and more.Disclaimer: I research genetics as a hobby. My sources come from all over the internet and friends. I want to keep my information as accurate and correct as possible, as is the point of this project, but I cannot guarantee I am the most trustworthy source. I recommend you do research outside of this Carrd alone. If you find any inaccurate information within my Carrd, please contact me!

About: Tan

I'm Tan(he/they), an animal colour genetics enthusiast. Back in 2021, when I was still in college studying animal care, I was able to pick my own subject to learn more about. Being a Warrior Cats fan, I was aware of the amount of information known regarding the genetics of cat colours. This intrigued me and I decided to use the subject of cat genetics for my school project, which ended up getting a perfect grade (mostly because I went overboard, though).I can well say that since then, cat genetics has been my special interest. I'm not sure why but it has stopped there for a long time, only cats. Later, I started playing with the Minecraft mod 'Realistic Horse Genetics'. Despite being virtual models of horses created with blocks and pixels, I found the horse colours quite beautiful and learned that there are many more than I thought there were. So, I started looking into horse genetics as well.Since late 2023, I'm finally giving in and diving deeper into animal genetics of all sorts of species. This is why I'm making this Carrd; to store my knowledge, track my research, and share information with anyone stumbling upon this. This Carrd is the late 2025 remake of the old Carrd. Its style is more pleasing to look at, and actually created with functionality in mind (I can fit a lot more text now, less scrolling required).Do you wish to contact me? You can do so on Discord @tanimtoo; I accept all friend requests, so just friend me and shoot me a message!

Index

All pages on the site will be listed here. All animals I have looked in to or plan to look in to will be listed here as well.

Finished Genetic Pages

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WIP Genetic Pages

Planned Genetic Pages

  • Chickens

  • Cows

  • Dogs

  • Gerbils

  • Goats

  • Guinea pigs

  • Mice

  • Pigeons

  • Pigs

  • Rabbits

  • Rats

  • Sheep

Credits & Sources

All credits and sources can be found here. Anything from image and photo credits, to sites with genetics information I've used to research. I recommend browsing through the sources if interested in further researching.

Information

Assets

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Other

  • Honourary mention to my friend, Canary, who I learned a lot from regarding cat genetics

Cats

Page under construction!

Index

  • Chromosomes

  • Red

  • Black/brown

  • Dilute

  • Dilute modifier

  • Agouti

  • Ticked

  • Tabby type

  • Spotted/broken

  • Inhibitor

  • Wideband

  • White masking

  • Albinism

  • Fur length

  • Eye colour

Overview

LocusAlelleGeneAlelleGeneAlelleGeneAlelleGene
RedO
o		red
non-red		      
Black/brownBblackbchocolateb1cinnamon  
DiluteDdenseddilute    
Dilute modifierDmmodifierdmno modifier    
AgoutiAnon-agoutiaagouti    
TickedTatickedtanon-ticked    
Tabby typeMcmackerelmcclassic    
Spotted/brokenSp
sp		spotted
non-spotted		      
Bengal/wild modifierBmbengal/wildbmnon-bengal/wild    
InhibitorIinhibitorinon-inhibitor    
WidebandWbnon-widebandwbwideband    
White maskingWdwhite dominantws
w		white spotting
non-white		    
AlbinismCfull colourcb
cs		burmese point
siamese point		cablue-eyed albinocpink-eyed albino
Fur lengthLshort furllong fur    

Chromosomes arent genes, but they are important to note due to sex-linked genes, hence the reminder here.

  • XY - male

  • XX - female

When two cats have kittens, they each pass on one of their two sex chromosomes. The female parent passes on either of her X-chromosomes, while the male parent passes on either his X-chromosome or his Y-chromosome. The chromosome the male passes on determines the sex of the kitten; if the X-chromosome is passed on, creating an XX-chromosomed (female) kitten, and of the Y-chromosome is passed on, creating an XY-chromosomed (male) kitten.

The Red locus determines whether a cat will be red or black/brown. The locus can be viewed as 'red or not red' for simplicity.

  • O - red

  • o - non-red

The Red locus is sex-linked and is located on the X-chromosome. It does not appear on the Y-chromosome. Because of this, the alleles for the Red genes are often written alongside the chromosomes. Because the Red locus can only be found on the X-chromosome, male cats have only one gene from this locus.

  • XO/Y - red male

  • Xo/Y - non-red male

Female cats have two X-chromosomes, thus have two genes from the Red locus. If the cat carries homozygous red genes (O/O), she will be red, and if she carries homozygous non-red genes (o/o), she will be black/brown. If she carries both red and non-red (O/o), she will be a tortoiseshell; having both patches of red and patches of black/brown on her coat.

  • XO/XO - red female

  • XO/Xo - tortoiseshell female

  • Xo/Xo - non-red female