[EinNYC]

The gene for color in cats is carried on the X chromosome. In cats, some cells could have the gene for black activated on one X chromosome and have the gene for red activated on the other X chromosome. So random cells are either black or red (orange), since female cats have 2 X chromosomes. Males only have 1 X chromosome, so they are either black OR red, not both. If you run across a rare male calico, he is a chimera and probably has abnormal chromosomes, likely the result of 2 eggs fusing, so he is XY/XY instead of XY

[doorgunner69]

Thought I read it was a genetic thing, you confirm it. never had a class in genetics.

Just seeing the gender confusion of millennials is enough to make you run away.

[Rome2000]

I’m so confused

Have seen solid grey cats give birth to tabby’s and grey cats in the same litter.