Kenny, when there's natural X pollination it's impossible to tell the degree of X pollination for any one fruit.

The tomato ovary has lots of ovules. Each pollen grain fertilizes one ovule, and that's the seed to be. If self pollenization is complete, then all the ovules are fertilized, but any that aren't can then be X pollinated. And so there can be in any one fruit pure seed, some hybrid seed from parent X and sometimes even then hybrid seed from parent Y.

I've had seeds that didn't show Xpollinated plants/fruits until several hundreds of those seeds had been distributed to others via my seed offers.

So unless blossoms are bagged, never, but never save seed from just one fruit, better several fruits from one plant and even better several fruits from more than one plant so you dilute out any x pollinated seeds.

if you save seeds from the red/orange CP, now the F2 seeds, and plant out several of those you're going to see different plants with different fruits, different colors, different shapes, etc due to segregation of the genes. Since you have no idea what the other parent is you can't predict what you'll get.

if you want to make selections to get only that red/orange one, then at each generation you have to save seeds from just the plant that has those fruits, save the seeds, repeat each season and when all seeds planted give the same plants/fruits then you can consider it genetically OP.

if you want a link to a site which explains gene segregation, I'd be happy to give you one, but right now I'm not sure which way you're headed with this.

Carolyn

Thank you Carolyn. That was what I wanted to know, and all that I wanted to know. So the rest of the seed I have from last year might, or might not give the same thing. I'm 80, so I don't think I will try to grow it out.
KennyP

You must be a young 80 to still be a kid.
Thanks Carolyn for a very helpful explanation.