TikTok is in its genetic flex era thanks to the viral “Mom Genetics Go Crazy” trend—where families are showing off their strongest DNA matches. Set to the 90s bop “All That She Wants” by Ace of Base, moms and daughters are posting side-by-side glow-ups that have commenters calling them clones. With creators like Savannah LaBrant and the McKnight family joining in, the trend has sparked a playful debate: did dad even contribute?
But once dads entered the chat with their own lookalike kids, things got even more interesting—and had us diving into the science of how genetics actually work. That old theory that babies evolved to look like their dads? It’s been debunked. Research shows we inherit 50/50 DNA from each parent, but how those genes express is totally unpredictable—which explains why one sibling can be mom’s twin and the other dad’s doppelgänger.
