Doctors check poop for DNA as part of the screening process for colorectal cancer. It helps doctors diagnose people with this disease during its early stages or even when the cells are precancerous.

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In the last decade, the drive to understand who we are and where we've come from has been accelerated by DNA testing.

The U.S. Supreme Court ruled in a 6-3 opinion that Texas death row prisoner Ruben Gutierrez should be permitted to continue his lawsuit challenging the constitutionality of the state's post-conviction ...