My grandmother was Italian. Why aren't my genes Italian?

I also learned that even though I got half my genes from Mom, they may not mirror hers.

We do have the genes we inherit — 50 percent from each parent. But Elissa Levin, a genetic counselor and the director of policy and clinical affairs of Helix, says a process called recombination means that each egg and each sperm carries a different mix of a parent’s genes.

“When we talk about the 50 percent that gets inherited from Mom, there’s a chance that you have a recombination that just gave you more of the northwest European part than the Italian part of your Mom’s ancestry DNA,” she says. That’s also why siblings can have different ancestry results.