Its twisted, double-helix structure is one of the most iconic ... Gene codes are broken down into groups of three nucleotide bases, known as codons. Different codons indicate different amino ...

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 ...

Adjacent ribose nucleotide bases are chemically attached to one ... RNA is then translated into proteins by structures called ribosomes. There are three types of RNA involved in the translation ...

DNA consists of four chemical units, called nucleotide bases: adenine (A), thymine (T), guanine (G ... maintaining chromosome structure, and playing a role in evolution. The size of an organism's ...

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 ...