Changes

DNA contains [[gene]]s that encode for [[protein]]s. These are produced by the DNA first being turned into m[[RNA]] and then into polypeptides (this process is called the [[Central dogma of molecular biology|central dogma]] of molecular biology). All organisms use DNA as their hereditary material.

DNA contains [[gene]]s that encode for [[protein]]s. These are produced by the DNA first being turned into m[[RNA]] and then into polypeptides (this process is called the [[Central dogma of molecular biology|central dogma]] of molecular biology). All organisms use DNA as their hereditary material.

==Organisation==

==Organization==

Most of the cells in multi-cellular organisms (human including) retain a complete copy of all DNA of the first cell from which the organism started to grow. It is often possible to clone the organism, or part of it, from a single cell, while doing so with a human cell has severe ethical implications.

Most of the cells in multi-cellular organisms (human including) retain a complete copy of all DNA of the first cell from which the organism started to grow. It is often possible to clone the organism, or part of it, from a single cell, while doing so with a human cell has severe ethical implications.