Clone: Wikis



From Wikipedia, the free encyclopedia


Clone may refer to:


  • Clone (B-cell biology), a process of immunological B-cell maturation
  • Clone (genetics), in molecular biology, an exact replica of all or part of a macromolecule (e.g. DNA)
  • Cloning, in horticulture and biology, any organism whose genetic information is identical to that of a "mother organism" from which it was created
  • Clone (cell biology), a group of identical cells naturally derived from a common mother cell; of significance in vertebrate physiology, and concepts related to immunology and cancer biology


  • Clone (computing), a computer made by a third party, such as PC clones or Macintosh clones.
  • Clone (database), a complete and modified copy of a database environment that's often used for development or testing purposes.
  • Clone (function), various functions in computer programming





Other uses

  • Clone (voting), in voting systems analysis, a candidate identical to one already present in an election

See also

Simple English

A clone is any cell or individual which is identical to another.

In biology, cloning is the process of producing one or more genetically-identical individuals. With whole individuals, it usually means the deliberate production of an identical copy. This was first achieved in mammals with the famous Dolly the sheep. Human identical twins are natural clones; so are the progeny of asexual reproduction, and any parthenogenetic reproduction which does not involve meiosis.

In genetics and cell biology, cloning refers especially to the DNA sequence, and by implication all the other macromolecules.

Clones in cell lines occur, but there are some obvious provisos. Changes to the DNA in any shape or form means the daughter cells are not identical with the mother cells. Typically during development genes are switched on and off, and the daughter cells gradually become differentiated into mature tissue cells. These are not identical with the original stem cells, so they are clones only in the sense of being derived from the same mother cell.

The laboratory copying of a molecule to produce exact copies is also called cloning.

Citable sentences

Up to date as of December 17, 2010

Here are sentences from other pages on Twin, which are similar to those in the above article.

Got something to say? Make a comment.
Your name
Your email address