Jennifer Lopez's time-defying looks have caused many to question what she eats, how she exercises, just how she manages it! But we now see that her genes have a lot to answer for. She recently posted a photo with her mom Guadalupe, who at 74 could easily pass for much younger. The Jenny From The Block hit-maker is really close to her mom, who raised her and her two sisters Leslie and Lynda in the Bronx, New York with her husband David.