Genes seem to pre-house personality somewhat (as you agree), but more especially in animals (dogs come to mind). But, I don’t concur that genes pre-house human personality, at least beyond the limbic or visceral states (of mind). Also, uniformatarian and/or catastrophical metaphysical-environmental events are apt to play upon persons.
I’m an identical twin (for real). Our personalities are quite different.
I have a B.S in psychology, my twin a B.S in Civil Engineering.
I only drink Nyquil for colds. He’s an ‘AA’ alcoholic.
I’m a fundy-YEC. He’s a Zon-Atheist
I’m homophobic. He is indifferent and has a close homosexual friend.
I’m a podiatrist and portrait artist (like the picture to your left); he drafts survey plans.
I am left-footed and was left-handed he is right-footed and right-handed.
Etc.
We seemed to begin life similarly and then grow up differently.
We HAD the same genes at conception (probably) and many similar genes at birth. Environment, DNA-protein factors, and unknown mechanisms of our identical genomes have somehow drastically changed the genes (let alone our personalities).
Thus many would not believe we have the same personality genes.
Anyway, hope this helps.
Philip
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