What is Chromatid?
[[File:Chromosome.svg|thumb|220px|Diagram of a duplicated and condensed metaphase [[eukaryote|eukaryotic]] chromosome. <br/>(1) '''Chromatid''' – one of the two parts of the chromosome after duplication. <br/>(2) [[Centromere]] – the point where the two chromatids touch. <br/>(3) Short arm. (4) Long arm.]] '''Chromatids''' are the daughter strands of a duplicated [[chromosome]] which are joined by a single [[centromere]]. When the centromere divides, the chromatids become separate chromosomes.<ref>King R.C. Stansfield W.D. & Mulligan P.K. 2006. ''A dictionary of genetics'', 7th ed. Oxford. p79</ref> Each of the two daughter chromatids contains the same [[DNA]] and [[chromatin]] [[protein]] as its original chromosome. But in [[meiosis]], crossing over (exchanges) take place between two of the non-sister chromatids. This has profound consequences: it produces genetic [[recombination]], and increases the variability of [[gamete]]s. == Reference == {{Reflist}} [[Category:Chromosomes]]