What is DNA, and how does it work ... pairs is a compound molecule called a nucleic acid. Living organisms are constantly building new cells or repairing old ones. To do this they have to make ...

What do a human ... prokaryotes, DNA is located directly within the cellular cytoplasm, as there is no nucleus available. But what, exactly, is DNA? In short, DNA is a complex molecule that ...

It carries the genetic instructions for the development, functioning, growth, and reproduction of all known organisms and many viruses. DNA is a complex molecule that consists of two strands coiled ...

DNA sequencing is a laboratory method used to determine the sequence of a DNA molecule. The method was developed by Frederick Sanger in 1975, who was later awarded the Nobel Prize in chemistry in ...

Francis Crick and James Watson with a model of the DNA molecule At midday on 28 February 1953, Francis Crick and James Watson walked into The Eagle pub in Cambridge and announced “We have ...

Most people at the time thought the gene would be protein, not nucleic acid, but by the late 1940s, DNA was largely accepted as the genetic molecule. Scientists still needed to figure out this ...

These bases are the rungs of the DNA ladder. (It takes two bases to form a rung -- one for each side of the ladder.) A sugar molecule, a base, and a phosphate molecule group together to make up a ...

Except for identical twins, each person's DNA is unique. This is why people can be identified using DNA fingerprinting. DNA can be cut up and separated, which can form a 'bar code' that is ...

DNA has been used for years to store data, but encoding information into the molecule is painstaking work. Now, researchers ...