(Alones Creative/iStock/Getty Images) One of the most iconic visual representations in biological science is the double helix – the twisting, twin-stranded ladder that defines the shape of DNA ...

Every time a cell divides, it must accurately copy its entire genetic instruction manual. Before this process can begin, cells load their DNA-copying motor—a complex of six subunits known as the ...

Every time a cell divides, it must copy its DNA with extraordinary precision. But this process is constantly challenged by DNA damage. Among the most dangerous lesions are DNA interstrand crosslinks ...

So-called junk DNA was given that unfortunate nickname because its function was so mysterious. These vast regions of the genome do not code for protein and are made up of highly repetitive sequences.

Every time a cell divides, it must copy its entire genome so that each daughter cell inherits a complete set of DNA. During that process, enzymes known as polymerases race along the DNA to copy its ...