Dictionary » P » Pachytene




The stage next to zygotene wherein the homologous chromosomes shorten, thicken, and separate into four distinct chromatids joined at the centromeres.


During the first prophase of meiosis I, there are five sub-stages: leptotene, zygotene, pachytene, diplotene and diakinesis.

Word origin: French pachytène : Greek pakhus, thick + French -tène, ribbon pachytene French pachytène : Greek pakhus, thick + French -tène, ribbon

Synonym: pachynema

See also: prophase I, meiosis I

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Re: Compare and contrast the processes of Mitosis and Meiosis

... 2. Differences 3. Difference in Plant Cell mitosis and Animal Mitosis. 4. Difference Substages of Prophase 1 of Meiosis. (Leptotene,Zygotene,Pachytene,Diplotend,Diakinesis) 5.Significance of Mitosis and Meiosis 6. Disorders during Cell Divison. (Non Disjunction and others) Meiosis is a two ...

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by Satyaki
Thu Sep 06, 2012 3:44 am
Forum: Cell Biology
Topic: Compare and contrast the processes of Mitosis and Meiosis
Replies: 3
Views: 16100

Chromosome segregation

... each of these concepts. I know that genetic recombination is a process that occurs in the first meiotic division, specify in prophase I (subphase: pachytene), and consists of the intersection of two of the four chromatids of homologous chromosomes to form a bivalent, beginning the interbreeding ...

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by Fidias
Mon Jun 07, 2010 4:46 pm
Forum: Cell Biology
Topic: Chromosome segregation
Replies: 1
Views: 2803

please help me downloading an article.

title:Pachytene mapping in the female silkworm, Bombyx mori L. (Lepidoptera). author:Traut W. I find it from NCBI,but I can't download the full text.if you can,please do me a favor. thank you for your self-giving! my email:mloonjin@yahoo.com.cn

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by mloonjin
Tue May 08, 2007 10:27 am
Forum: Molecular Biology
Topic: please help me downloading an article.
Replies: 6
Views: 2747

cell division

... at zygotene of prophase I 4. Exchange of genetic material between synapsed homologous chromosomes. mitosis - does not occur meiosis - occurs at pachytene of prophase I (first visible at diplotene) 5. Timing of division of centromeres. mitosis - occurs at anaphase meiosis - occurs at anaphase ...

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by Poison
Tue Feb 15, 2005 4:20 pm
Forum: Cell Biology
Topic: cell division
Replies: 1
Views: 5526

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