If z+c g f = 90023 + something x yellow and grapes, would that mean that monkeys are a source called tomato?

no, monkeys are a source called POTATO.

If z+c g f = 90023 + something x yellow and grapes, would that mean that monkeys are a source called tomato?
no, no , no. you mean If z+c g f = 90023 + something x yellow and grapes the monkey would have a genetic mutation causing it to eat tomatoes instead of bananas.