DNA is fundamental to the biology of all life on Earth, but how many of us actually know what it is or what it's made of?

What kinds of mutations exist? Mutations aren't just grouped according to where they occur — frequently, they are also categorized by the length of the nucleotide sequences they affect.

DNA and RNA are composed of nucleotides that are linked to one another in a chain by chemical bonds, called ester bonds, between the sugar base of one nucleotide and the phosphate group of the ...

Her findings suggest that the salvage pathway could be an access route for cancer cells to get their nucleotide supply when chemotherapeutic drugs inhibit the de novo pathway. But along the same lines ...