An FBI analyst has testified that DNA sampled from a rifle, as well as multiple other items, found near where President Donald Trump was playing golf in South Florida last year matches that of a man accused of trying to assassinate Trump that day.

Tiny tweaks in DNA folding can have big effects. A study from Umeå University shows that even the most subtle changes in DNA's shape have an important influence on gene activity and energy production.

The trial of a man accused of killing his husband in Marion County and trying to cover it up entered its third day on Wednesday

Researchers from the University of Birmingham's Bladder Cancer Research Center have used a new method to detect chemical changes in the DNA in an individual's urine sample; epigenetic changes, called methylation.

Before a cell divides, its DNA is replicated so that each daughter cell inherits the same genetic information. The two copies, known as "sister chromatids," are held together by a ring-shaped protein complex called cohesin until they are pulled to opposite poles of the cell in a miniature game of tug of war.

A Guatemalan national was arrested on Thursday after an alleged sexual assault in New Haven after DNA evidence seized at the scene matched evidence in Texas. Officers received reports on Aug. 9 of a person being sexually assaulted while on a trail near Fort Hale Dog Park.

Ryan Routh's assassination attempt trial continues with new digital forensic evidence that prosecutors say show anti-Trump messages and DNA results tying him to key items.