Synaptonemal Complex

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<u></u>The synaptonemal complex is a protein which forms between&nbsp;[[Homologous chromosomes|homolgous chromosomes]]. The synaptonemal complex begins to form during the [[Meiosis_prophase_1|zygotene phase]] of [[Meiosis prophase 1|Prophase I]] in [[Meiosis|Meiosis]] and is complete in the [[Meiosis_prophase_1|pachytene phase]]. Acting like a 'zipper' it holds the homologous chromosomes together, aligning them perfectly. After complete synapsis, crossing over occurs and in the [[Meiosis_prophase_1|diplotene phase]], where the [[Meiosis_prophase_1|chiasma]] is visible, the synaptonemal complex 'unzips' and disappears.  
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<u></u>The synaptonemal complex is a protein which forms between&nbsp;[[Homologous chromosomes|homolgous chromosomes]]. The synaptonemal complex begins to form during the [[Meiosis prophase 1|zygotene phase]] of [[Meiosis prophase 1|Prophase I]] in [[Meiosis|Meiosis]] and is complete in the [[Meiosis prophase 1|pachytene phase]]. Acting like a 'zipper' it holds the homologous chromosomes together, aligning them perfectly. After complete synapsis, crossing over occurs and in the [[Meiosis prophase 1|diplotene phase]], where the [[Meiosis prophase 1|chiasma]] is visible, the synaptonemal complex 'unzips' and disappears <ref>Hartl DL and Jones EW (2009) Genetics: Analysis of Genes and Genomes, Seventh Edition, USA, Jones and Bartlett Publishers</ref>.  
  
 
=== References  ===
 
=== References  ===
  
<references />Hartl DL and Jones EW (2009) Genetics: Analysis of Genes and Genomes, Seventh Edition, USA, Jones and Bartlett Publishers<br><br>
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<references /><br><br>

Revision as of 17:21, 2 December 2011

The synaptonemal complex is a protein which forms between homolgous chromosomes. The synaptonemal complex begins to form during the zygotene phase of Prophase I in Meiosis and is complete in the pachytene phase. Acting like a 'zipper' it holds the homologous chromosomes together, aligning them perfectly. After complete synapsis, crossing over occurs and in the diplotene phase, where the chiasma is visible, the synaptonemal complex 'unzips' and disappears [1].

References

  1. Hartl DL and Jones EW (2009) Genetics: Analysis of Genes and Genomes, Seventh Edition, USA, Jones and Bartlett Publishers


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