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?

Double-stranded DNA consists of two polynucleotides that are arranged such that the nitrogenous bases within one polynucleotide ... Beyond the ladder-like structure described above, another ...

Laying the Groundwork: Levene Investigates the Structure of DNA Meanwhile ... of the three major components of a single nucleotide (phosphate-sugar-base); the first to discover the carbohydrate ...

When a cell divides, the process of DNA replication is very carefully controlled to preserve the genetic information encoded within the nucleotide base sequence. However, changes in the genome do ...