Eli5: Would any of the 250 million sperm I outraced into existence, have been, in any meaningful way different different than I turned out?

Question

We often hear the metaphor, “out of the millions of sperm, you won the race!” Or something along those lines. But since the sperm are caring copies of the same genetic material, wouldn’t any of them have turned out to be me?

(Excluding abiotic factors, of course)

In: Biology

Answer 1

It’s possible for non-identical twins to exist when two eggs get fertilised at once. So yes, you would be completely different.