A - agouti - har mønster

a -  non-agouti - uten mønster

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B - full farge (ikke-sjokolade eller kanel)

b - sjokolade

bl - kanel

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C - farge

cb - burmautfargning (sepia)

cs - siames/maske/pointed

ca - recessive white (blue-eyed albino)

c  - albino (pink-eyed albino)?

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D - full farge/ikke-dilution

d - dilution

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E - non-extension (= non-amber)

e  - extension (= amber)

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I - sølv

i - ikke-sølv

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L - kort pelslengde

l - lang pelslengde

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M - manx

m - ikke-manx (hale med normal lengde)

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Mc - mønster

McMc,( Mcmc )- Tigre

mcmc - klassisk tabby

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O - rødt pigment

o - svart pigment

Oy - rødpigmentert han

oy - svartpigmentert han

Oo - skillpaddefarget hun

oo - svartpigmentert hun

OO - rødpigmentert hun

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R - rett pels (non-cornish/non-german)

r  - krøllet pels (som hos cornish rex och german rex, som har samme mutation)

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Re - rett pels (non-devon)

re - bølget pels (som hos devon rex)

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S - hvitflekk

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Sp - spottet

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T - ticket

t - ikke ticket

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W - helhvit katt

w -  katt med fargen synlig

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Wb - widening/vidbåndsanlegget

WbWb - chinchilla/shell

Wbwb - shaded

wbwb - normale båndbredder

Dominante gen skrives med stor bokstav

Recessive gen skrives med liten bokstav

( enkelte unntak)