I have kittens

[TooManyButtons]

2 of them. Both girls. As yet nameless. I've not managed to take any decent photos yet, but here's one I took when I picked them up

[FrankH]

"I've never come across a female ginger tabby. I thought it was genetics that they were all male."

All tortoiseshells are females. While most gingers are males, a significant minority are female.

It's because the ginger/non-ginger gene is on the X chromosome.
Thus males only need a single ginger gene to be ginger.
Females need both their genes to be ginger for them to be visually ginger. If only one gene is ginger they become tortoiseshells. It's a result of the "Barr Body" effect (X-inactivation).

Thus a female ginger must have a ginger dad.

By the way, both kittens are cute!

[roseteapot101]

A pure ginger cat are all male but all they need is a patch of white the size of a few hairs and they can be female .It could be a patch on the base of their foot anywhere does not matter weird but funny

[SoupDragon]

All tortoiseshells are females

There are some tortoiseshell males but they are usually infertile and it is due to having an extra X chromosome. Approximately 1 in 3,000 apparently.

[SoupDragon]

A pure ginger cat are all male but all they need is a patch of white the size of a few hairs and they can be female

They just need 2 ginger parents.

[FrankH]

roseteapot101

I don't think that's strictly correct - but perhaps you know better.
And I wonder if there are any ginger cats without the tiniest patch of white.

[FrankH]

SoupDragon

Yes, there are sometimes anomalous intersexes, as there are in humans (Klinefelter's Syndrome etc.). And abnormally high testosterone levels may result in a female becoming visually masculinised.

But no true/normal male cats can be tortoiseshell.

[FrankH]

A ginger female doesn't actually need both parents to have been ginger. However if both parents are ginger, then she will definitely be a ginger.

A ginger female must have had a ginger dad. But her mum could either have been ginger or a tortoiseshell.

[BorpBorpBorp]

They are proper cuties

[GerundTheBehemoth]

White markings are caused (usually) by the white-spotting gene, which isn't sex-linked. So male and female gingers may or may not have some white.