Let's say I find a genetic marker common to pigs and cows. According to standard biology, it will also be found in giraffes, hippos, and whales. This has been tested numerous times, and so far it has always been found to be true.
According to Judaism and Islam, pigs are unclean and cows are clean, so I dunno how they deal with common genetic markers.
According to Buddhism and Hinduism, all animal life is sacred. Doesn't say much about genetics, though.
And so on. The ToE says what to expect in lab experiments; no religion can do that.
And everything looks the same when an embryo, but none of that means a thing
Besides, the making of somethign kosher or clean had nothing to do with genetics, it had to do with honoring what God called Holy vs what God called common.
God is not concerned with the calorie content of food, only whether you believe what He said and honor that.