Now we can talk about DOMINANT and recessive.
I have my own method of it. It works when only talking about a few simple genes. So you know, for now I'll leave out things like coDOMINANT, and the 2 kinds of that. There are other kinds of things genes do too such as one gene doing several things, and several genes required before one thing can be done. Forget I mentioned those things for now...
One rung of that DNA ladder is one allele pair.
For most things you want to breed in a Tomato that works. Colors of the tomato you can consider as MOSTLY and KINDASORTA. Same thing with tomato fruit sizes.
Leaf type is not a kinda sorta thing. it is one or the other...though sometimes a touch of smooth edgedness can show in a regular leaf.
One half of the allele might code for regular leaf. Turns out from 150 years of trials and checking, regular leaf is dominant. Why? Somehow during the millenia and millions of years of evolving, the wrassling match between regular leafed and potato leafed wild tomatoes repeatedly found the regular leaf as the winner in natural selection. (((that group of chemicals at that rung won most of the matches.))) certain other wild tomatoes kept the potato leaf form without the long millions of years of hard battling, so that group of chemicals survived, but not as the DOMINANT group.
If the other half of the allele codes for potato leaf, there is the DOMINANT REGULAR LEAF ALLELE HALF matching up with the recessive potato leaf allele half.
I label that D/r
Fancy geneticists really hit the books and found a 3 bit word for that! HETEROZYGOUS!
and lord help us, not kidding, they call these,
D/D and also r/r HOMOZYGOUS!
I don't mind either way who's what, but, I just don't know what they were thinking
