KSL TV BOUNTIFUL — The largest DNA study in the country is happening right here in Utah. Doctors believe it can change the way they deliver future health care and hopefully even prevent chronic illnesses like diabetes, heart disease, and cancer. One Bountiful mother shares why she is eager for her family to participate. For Elissa Smith, family is everything. She's a mom to four, and the oldest child of St. George native Durward Wadsworth. KSL told his story 18 months ago, when he participated in Intermountain Healthcare's HerediGene Population Study after beating colon cancer. Durward Wads...