The orange color is an X chromosome. The Y chromosome
doesn't come into play in color at all. A male cat who inherits an
"orange" X chromosome comes out orange, every time.
But females have two X chromosomes. If there are two Orange X genes, you do in fact get a
That would be only 1 cat in 4 that inherits one orange
gene. The others will have genes for other colors, and you get a
tricolor/tortoiseshell cat, which is more common. So you get many more
male oranges than female oranges, about 3:1.
Males, lacking that second X, can never be tricolors except
when there's some sort of genetic malfunction. So male tricolors are
incredibly rare, and always sterile.
The Cat Fancier web site below tells you more than you could
ever possibly want to know about the genetics of cat colors.